Reed Sensors & Magnets | Introduction

Reed sensors when paired with magnets present an ideal method of sensing and detecting movement, proximity, metal detection, and liquid level and flow measurement. Reed sensors open and close their reed switch contacts in the presence of a magnetic field. Typically a permanent magnet is the moving member in the magnetic system. This can be a piston, a float, a rotating disk, and much more.Reed sensors come in hundreds of different sizes and shapes to meet a multitude of different application requirements. Reed Sensors are available in contact forms A, B, C, D, & E with power ratings up to 100W.  They do well in long operating life applications if switching relatively low voltages and currents with life expectancy up to 1 billion operations.Standex-Meder specializes in customizing designs to specific customer needs for a wide range of applications. Please contact us to provide the optimal solution for your specific needs.

Adjustable Thread Mount Reed Sensor

Thread mount reed sensors are supplied in a cylindrically shaped housing with cable terminals and offer the convenience of quick sensing adjustment. Available in plastic, stainless steel and brass. They include many options such as rated power up to 100W, switching voltages up to 1,000 VDC, SPST-N.O., SPST-N.C. and SPDT changeover contact configurations and more. Additionally any standard series my be customized to your specific needs with regards to custom cable length, wire termination, marking, etc.

MK07 Reed Sensor

Plastic M8 adjustable thread mount MK07 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval

MK11Brass Reed Sensor

M6, M8, M10 and M12 adjustable thread mount MK11 Brass Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Plastic Reed Sensor

M8 adjustable thread mount MK11 Plastic Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Stainless Steel Reed Sensor

M5/M8 adjustable thread mount MK11 Stainless Steel Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

ATEX Approved Reed Sensor

ATEX approved reed sensors are tested to carry out switching functions in potentially explosive atmospheres such that they will not become an ignition point when subjected to short circuits or adjacent component failures. They must also switch to a defined state when subjected to overload conditions. Reed sensor products meeting these requirements are generally referred to as intrinsically safe.

MK25 Reed Sensor

ATEX approved (intrinsically safe) contactless push button panel mount MK25 Series Reed Sensor. Optional internal switch, cable, length, and termination. Button plates, emergency stop buttons, etc. can be provided with laser inscriptions as required. The information is burnt into the surface and thus, unlike with print-inscribed elements, is very durable. KEMA 05ATEX1206 X according to EN 60062

MK08 Reed Sensor

ATEX approved (intrinsically safe) panel mount MK08 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. Oil resistant wire, operate -40°C to +130°C. KEMA 00ATEX1112 X, IECEx KEM09.0006 X according to DinEN60062

Best Value Reed Sensor

Standex-Meder best value reed sensor products are manufactured with our unique, patented, and highly automated production process allowing us to produce very cost-effective/industrial grade switches with outstanding physical and electrical characteristics. They are then packaged as a surface mount sensor or screw fastened flange mount sensor with a rectangular housing and cable terminals.

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK05 Reed Sensor

Best value screw fastened flange mount MK05 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK04 Reed Sensor Dimensions

Best value screw fastened flange mount MK04 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK15-501 Reed Sensor

Best value surface mount (SMD) MK15-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK23-501 Reed Sensor

Best value miniature surface mount (SMD) MK23-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or helix lead (improved magnetic sensitivity) designs available. UL Approval

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

High Temperature Reed Sensor

High temperature reed sensor products typically have an expansive temperature range of-55°C to 150°C and has no negative effect on the reed sensor’s operating characteristics. They are ideal under harsh environmental conditions that typically exist in under-the-hood environments (automotive).

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

High Voltage Reed Sensor

High voltage reed sensor products are SPST switches used for switching high voltage applications in the medial and ATE markets. They are capable of switching up to 10,000 VDC and currents up to 3 Amps.

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK26 Reed Sensor

High voltage screw fastened flange mount MK26 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. IP67 Rated

MK30 Reed Sensor

High voltage surface mount (SMD) MK30 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Gull-wing lead design. UL Approval

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

Latching / Bistable (1 Form E) Reed Sensor

A latching reed sensor or bistable reed sensor has an internal reed switch(es) with (Form E) contacts that are magnetically biased and can exist in either the normally open (N.O.) or normally closed (N.C.) state which is controlled by reversing the magnetic field. A bistable reed sensor is used in applications calling for extremely small power requirements, particularly in battery powered devices.

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

Magnet in Housing

A magnet in housing is a permanent magnet that is epoxy encapsulated in plastic or metal housing that is either cylindrical panel mount or adjustable screw mount, rectangular screw mount, or other custom mounted housing.

M11/B6, B8, B10, B12 Actuator Magnet in Housing

The M11/B6, B8, B10, B12 Series Magnet in Housing is sealed in a convenient, easy adjustable threaded brass housing. Pair this magnet with our MK11/B (M6, M8, M10 or M12) series reed sensor (sold separate) for a proximity sensing solution. The brass housing is structurally robust enabling it to withstand higher torque settings, and resist high temperatures, moisture, and compression. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M11/M8 Actuator Magnet in Housing

The M11/M8 series magnet in housing is sealed in a convenient, easy adjustable threaded plastic housing. Pair this magnet with our MK11/M8 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M11/M5, M11/S8 Actuator Magnet in Housing

The M11/M5, M11/S8 Series Magnet in Housing is sealed in a convenient, easy adjustable threaded stainless steel housing. Pair this magnet with our MK11/M5 or MK11/S8 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M03 Actuator Magnet in Housing

The M03 series magnet in housing comes in a cylindrical housing. Pair this magnet with our MK03 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M02 Actuator Magnet in Housing

The M02 series magnet in housing has a convenient screw mount. Pair this magnet with our MK02 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M26 Actuator Magnet in Housing

The M26 series magnet in housing has slotted holes for adjustable screw mounting. Pair this magnet with our MK26 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M21P/1, M21P/2 Actuator Magnet in Housing

The M21P/1, M21P/2 series magnet in housing has either horizontal (/1) or vertical (/2) slotted screw mount holes. Pair this magnet with our MK21P/MK21M series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M05 Actuator Magnet in Housing

The M05 series magnet in housing has a single screw mount slot for adjustment. Pair this magnet with our MK05 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M13 Actuator Magnet in Housing

The M13 series magnet in housing has slotted holes for adjustable screw mounting. Pair this magnet with our MK13 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M04 Actuator Magnet in Housing

The M04 series magnet in housing has adjustable slotted screw mount holes. Pair this magnet with our MK04 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

M06 Actuator Magnet in Housing

The M06 series magnet in housing comes in 3 different surface mount (SMD) sizes. Pair this magnet with our MK06 series reed sensor (sold separate) for a proximity sensing solution. The sensor should be mounted on a fixed surface with the actuating magnet on the moving surface.

Metal Detection Reed Sensor

Metal detection reed sensor products are a great alternative to inductive proximity sensors. Available in screw fastened flange mount and PCB through-hole (THT) designs, these ferromagnetic metal detection sensors are suitable for a wide range of applications including but not limited to: end travel sensing limit switches, position control, and security uses such as door and window control, opening recognition contact and metal fire protection doors. Choose from normally open (SPST-N.O.) or normally closed (SPST-N.C.) contact forms.

MK28 Reed Sensor

Magnetically conductive vane operated screw fastened MK28 Series Reed Sensor with cable terminals is ideal in harsh environments.

MK02 Reed Sensor

Ferrous metal detection screw fastened flange mount MK02 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation. UL Approval, IP67 Rated

MK02/6, MK02/7 Reed Sensor

Ferrous metal detection through-hole mount (THT) MK02/6, MK02/7 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation.

Miniature Reed Sensor

Our miniature reed sensor series with glass lengths ranging from 9-14mm are some of the industries most used switches. Advancements in reed switch contact materials and construction have led to the ability of these smaller reed switches to maintain their contact ratings as they've become smaller. Miniature reed sensors include attributes like close differential, high current, mercury, high performance and even SPDT single pole double throw changeover contacts. Miniature reed switches play an integral role in two of the most critical areas for miniaturization, electronic/semiconductor equipment testing market and medical devices. Additionally they are heavily used in test equipment, telecommunications, security, medical, automotive, appliances, industrial, and aerospace among other sectors.

MK20/1 Reed Sensor

Miniature (3.0mm) panel mount MK20/1 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

MK23-501 Reed Sensor

Best value miniature surface mount (SMD) MK23-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or helix lead (improved magnetic sensitivity) designs available. UL Approval

MK22 Reed Sensor

Miniature surface mount (SMD) MK22 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

MK16 Reed Sensor

Miniature surface mount (SMD) MK16 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

Panel Mount Reed Sensor

Panel mount reed sensors are supplied in a cylindrically shaped housing with cable terminals. They include many options such as rated power up to 100W, switching voltages up to 1,000 VDC, SPST-N.O., SPST-N.C. and SPDT changeover contact configurations and more. Additionally any standard series my be customized to your specific needs with regards to custom cable length, wire termination, marking, etc.

MK03 Reed Sensor

Panel mount (5.75mm) MK03 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK14 Reed Sensor

Panel mount (4.0mm) MK14 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK18 Reed Sensor

Panel mount (5.0mm) MK18 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK20/1 Reed Sensor

Miniature (3.0mm) panel mount MK20/1 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

MK20/2 Reed Sensor

Ultraminiature (2.7mm) panel mount MK20/2 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

Permanent Magnets

Permanent MagnetsPermanent magnets have a consistent non-varying magnetic field that has a north and south pole associated with them.  The magnets come in different materials – rare earth, Alnico and hard ferrite.  They all come in different sizes and shapes and have different magnetic strengths.  The rare earth are the strongest, Alnico are the most stable, and ferrite are the least expensive. The magnetic strength is generally measured in gauss or milliTesla.A Reed Switch requires either a permanent magnet or magnetic field in order to activate the switch, thus it is commonly called a magnetic reed switch. Magnets have reversible and irreversible demagnetization specifications. Engineers should consider shock, vibration, strong external magnetic fields as well as high temperatures in their designs. All these factors influence the magnetic force and the long term stability in different ways.Preferably the magnet is mounted on the moving part of the application. Professional tuning of magnet and reed switch pairing can improve the functionality of the whole sensor-magnet system.

Types of Magnets

We offer the following types of permanent magnets:
  • AlNiCo (Aluminum Nickel, Cobalt, Iron and Titanium)
  • SmCo (Samarium–Cobalt) & NdFeB (Neodymium) - rare earth
  • Hf - hard ferrite
These are some of our most widely used models, others available as required.
  • AlNiCo - Ø2.5 x 12.7 mm, Ø3.0 x 12.0 mm, Ø4.0 x 19.0 mm, Ø5.0 x 4.0 mm, Ø5.0 x 20.0 mm, Ø5.5 x 22.0 mm, Ø7.5 x 27.0 mm, 3.2 x 3.2 x 19.0 mm
  • Rare Earth - NdFeB N35 Ø4 x 19 mm, NdFeB N35H Ø4 x 19 mm, NdFeB N45 Ø4 x 19 mm, NdFeB 250/175H Ø6 x 10 mm, NdFeB 250/175H 10 x 5 x 1.9 mm, SmCo5 Ø1.9 x 3 mm, SmCo5 Ø3 x 4 mm
  • Hard Ferrite - 28/26 2.6 x 2.6 x 4.0 mm, 28/26 3.5 x 1.8 x 1.8 mm, 28/26 6.7 x 6.7 x 2.7 mm
Magnets have reversible and irreversible demagnetization specifications. Be especially careful with shock, vibration, strong and close external magnetic fields as well as high temperatures. All these factors influence the magnetic force and the long term stability in different intensities. Preferably the magnet is mounted on the moving part of the application. Professional tuning of magnet and reed switch can improve the functionality of the whole sensor-magnet system.
low-to-high
CostsFerriteAiNiCoNdFeBSmCo
Energy (WxHmax.)FerriteAiNiCoSmCoNdFeB
Working TemperatureNdFeBFerriteSmCoAiNiCo
Corrosion - ResistantNdFeBSmCoAiNiCoFerrite
Opposing Field - RessistantAiNiCoFerriteNdFeBSmCo
Mecanical StrengthFerriteSmCoNdFeBAiNiCo
Temperature CoefficientAiNiCoSmCoNdFeBFerrite

Reed Sensor Design Kit

Reed Sensor Design Kit provides design engineers with quick and convenient access to sensor systems for evaluation purposes, taking the guess work out of the sensor design process. Standex-Meder proprietary 3-D magnetic mapping equipment was used to accurately map out the activation distances in mm for 5 different positions and movement configurations of each sensor, along with its corresponding magnet.

Screw Mount Reed Sensor

Screw fastened flange mount reed sensors come in a rectangular housing with cable terminals. They include many options such as rated power up to 100W, switching voltages up to 1,000 VDC, SPST-N.O., SPST-N.C. and SPDT changeover contact configurations and more. Additionally any standard series my be customized to your specific needs with regards to custom cable length, wire termination, marking, etc.

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK26 Reed Sensor

High voltage screw fastened flange mount MK26 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. IP67 Rated

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK05 Reed Sensor

Best value screw fastened flange mount MK05 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK04 Reed Sensor Dimensions

Best value screw fastened flange mount MK04 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK28 Reed Sensor

Magnetically conductive vane operated screw fastened MK28 Series Reed Sensor with cable terminals is ideal in harsh environments.

MK02 Reed Sensor

Ferrous metal detection screw fastened flange mount MK02 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation. UL Approval, IP67 Rated

SPDT Changeover (1 Form C) Reed Sensor

Changeover reed sensor products contain one or more single-pole double throw SPDT reed switches where a normally closed contact opens before a normally open contact closes. A changeover reed sensor is also referred to as a (Form C) reed sensor or break-before-make (Form C) which defines the sequence in which one reed switch contact opens its connection to another contact and then closes its connection to a third contact. Changeover reed sensors can also be used as a (Form B), normally closed reed sensor (N.C.) application.

MK25 Reed Sensor

ATEX approved (intrinsically safe) contactless push button panel mount MK25 Series Reed Sensor. Optional internal switch, cable, length, and termination. Button plates, emergency stop buttons, etc. can be provided with laser inscriptions as required. The information is burnt into the surface and thus, unlike with print-inscribed elements, is very durable. KEMA 05ATEX1206 X according to EN 60062

MK07 Reed Sensor

Plastic M8 adjustable thread mount MK07 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval

MK11Brass Reed Sensor

M6, M8, M10 and M12 adjustable thread mount MK11 Brass Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Plastic Reed Sensor

M8 adjustable thread mount MK11 Plastic Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Stainless Steel Reed Sensor

M5/M8 adjustable thread mount MK11 Stainless Steel Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK03 Reed Sensor

Panel mount (5.75mm) MK03 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK14 Reed Sensor

Panel mount (4.0mm) MK14 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK26 Reed Sensor

High voltage screw fastened flange mount MK26 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. IP67 Rated

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK05 Reed Sensor

Best value screw fastened flange mount MK05 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK04 Reed Sensor Dimensions

Best value screw fastened flange mount MK04 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK28 Reed Sensor

Magnetically conductive vane operated screw fastened MK28 Series Reed Sensor with cable terminals is ideal in harsh environments.

MK02 Reed Sensor

Ferrous metal detection screw fastened flange mount MK02 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation. UL Approval, IP67 Rated

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

MK01 Reed Sensor

SPDT Changeover surface mount (SMD) MK01 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection with high power switch option. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

SPST-N.C. (1 Form B) Reed Sensor

A normally closed (SPST-N.C.) or (Form B) reed sensor represent the state of contacts before any magnetic field is applied to them in which they exist in the closed state. To open the contacts a magnet of opposite polarity is brought into the existing magnetic field cancelling the field from the existing permanent magnet. This in turn opens the contacts. The magnet must be carefully chosen so that its strength is strong enough to cancel the field from the permanent magnet, but not too strong that it overpowers the permanent magnets field, which could reclose the contacts. Furthermore, care must be taken in selecting the physical operate and release points. Knowing where these 3 magnetic lobes are is essential for proper sensor operation.

MK25 Reed Sensor

ATEX approved (intrinsically safe) contactless push button panel mount MK25 Series Reed Sensor. Optional internal switch, cable, length, and termination. Button plates, emergency stop buttons, etc. can be provided with laser inscriptions as required. The information is burnt into the surface and thus, unlike with print-inscribed elements, is very durable. KEMA 05ATEX1206 X according to EN 60062

MK08 Reed Sensor

ATEX approved (intrinsically safe) panel mount MK08 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. Oil resistant wire, operate -40°C to +130°C. KEMA 00ATEX1112 X, IECEx KEM09.0006 X according to DinEN60062

MK07 Reed Sensor

Plastic M8 adjustable thread mount MK07 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval

MK11Brass Reed Sensor

M6, M8, M10 and M12 adjustable thread mount MK11 Brass Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Plastic Reed Sensor

M8 adjustable thread mount MK11 Plastic Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Stainless Steel Reed Sensor

M5/M8 adjustable thread mount MK11 Stainless Steel Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK03 Reed Sensor

Panel mount (5.75mm) MK03 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK14 Reed Sensor

Panel mount (4.0mm) MK14 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK26 Reed Sensor

High voltage screw fastened flange mount MK26 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. IP67 Rated

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK05 Reed Sensor

Best value screw fastened flange mount MK05 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK04 Reed Sensor Dimensions

Best value screw fastened flange mount MK04 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK28 Reed Sensor

Magnetically conductive vane operated screw fastened MK28 Series Reed Sensor with cable terminals is ideal in harsh environments.

MK02 Reed Sensor

Ferrous metal detection screw fastened flange mount MK02 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation. UL Approval, IP67 Rated

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

MK01 Reed Sensor

SPDT Changeover surface mount (SMD) MK01 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection with high power switch option. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK15 Reed Sensor

Normally closed (SPST-N.O.) surface mount (SMD) MK15 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead, high power switch. UL Approval

MK24 Reed Sensor Dimensions

Ultraminiature surface mount (SMD) MK24 series reed sensor used in On/Off control switch, proximity, motion, position detection with optional Form B (SPST-N.C.) contact form. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

SPST-N.O. (1 Form A) Reed Sensor

SPST-N.O. (1 Form A) Reed Sensor products contain a single internal reed switch that is a single pole single throw type switch with it's contacts in the normally open (Form A) position, drawing no power. A permanent magnet or magnet in housing is brought into the sphere of influence of the reed switch closing the contacts and carrying out the sensing application.

MK25 Reed Sensor

ATEX approved (intrinsically safe) contactless push button panel mount MK25 Series Reed Sensor. Optional internal switch, cable, length, and termination. Button plates, emergency stop buttons, etc. can be provided with laser inscriptions as required. The information is burnt into the surface and thus, unlike with print-inscribed elements, is very durable. KEMA 05ATEX1206 X according to EN 60062

MK08 Reed Sensor

ATEX approved (intrinsically safe) panel mount MK08 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. Oil resistant wire, operate -40°C to +130°C. KEMA 00ATEX1112 X, IECEx KEM09.0006 X according to DinEN60062

MK07 Reed Sensor

Plastic M8 adjustable thread mount MK07 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval

MK11Brass Reed Sensor

M6, M8, M10 and M12 adjustable thread mount MK11 Brass Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Plastic Reed Sensor

M8 adjustable thread mount MK11 Plastic Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals with optional high voltage switch. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK11 Stainless Steel Reed Sensor

M5/M8 adjustable thread mount MK11 Stainless Steel Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Used in position, level, and end limit detection w/convenient sensing adjustment. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK03 Reed Sensor

Panel mount (5.75mm) MK03 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK14 Reed Sensor

Panel mount (4.0mm) MK14 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK18 Reed Sensor

Panel mount (5.0mm) MK18 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional internal switch, cable, length, and termination. UL Approval

MK20/1 Reed Sensor

Miniature (3.0mm) panel mount MK20/1 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

MK20/2 Reed Sensor

Ultraminiature (2.7mm) panel mount MK20/2 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

MK21P, MK21M Reed Sensor

High temperature resistant screw fastened flange mount MK21P, MK21M Series Reed Sensor in a rectangular housing with cable terminals. Used in position, level, and end limit sensing. Molded (M) version for high temperature resistance up to +150°C. Optional internal switch, cable, length, and termination. UL Approval, IP67 Rated

MK27 Reed Sensor

High voltage aluminum screw fastened flange mount MK27 Series Reed Sensor in a rectangular housing with cable terminals. Ideal in harsh environments for proximity, position, motion, and end limit detection. Sensing distance up to 40mm, magnet included. Optional internal switch, cable, length, and termination. IP67 Rated

MK26 Reed Sensor

High voltage screw fastened flange mount MK26 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. IP67 Rated

MK13 Reed Sensor

Best value screw fastened flange mount MK13 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK05 Reed Sensor

Best value screw fastened flange mount MK05 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK04 Reed Sensor Dimensions

Best value screw fastened flange mount MK04 Series Reed Sensor in a rectangular housing with cable terminals. Used in position, proximity, motion, level, and end limit sensing. Optional internal switch, cable, length, and termination. UL Approval

MK28 Reed Sensor

Magnetically conductive vane operated screw fastened MK28 Series Reed Sensor with cable terminals is ideal in harsh environments.

MK02 Reed Sensor

Ferrous metal detection screw fastened flange mount MK02 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation. UL Approval, IP67 Rated

MK02/6, MK02/7 Reed Sensor

Ferrous metal detection through-hole mount (THT) MK02/6, MK02/7 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation.

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

MK30 Reed Sensor

High voltage surface mount (SMD) MK30 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Gull-wing lead design. UL Approval

MK01 Reed Sensor

SPDT Changeover surface mount (SMD) MK01 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection with high power switch option. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK15-501 Reed Sensor

Best value surface mount (SMD) MK15-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK15 Reed Sensor

Normally closed (SPST-N.O.) surface mount (SMD) MK15 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead, high power switch. UL Approval

MK23-501 Reed Sensor

Best value miniature surface mount (SMD) MK23-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or helix lead (improved magnetic sensitivity) designs available. UL Approval

MK22 Reed Sensor

Miniature surface mount (SMD) MK22 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

MK16 Reed Sensor

Miniature surface mount (SMD) MK16 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

MK17 Reed Sensor

Ultraminiature surface mount (SMD) MK17 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or J-lead designs available. UL Approval

MK10 Reed Sensor

Ultraminiature surface mount (SMD) MK10 Series Reed Sensor is used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Integrated internal resistor (others available), gull-wing lead design.

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

MK24 Reed Sensor Dimensions

Ultraminiature surface mount (SMD) MK24 series reed sensor used in On/Off control switch, proximity, motion, position detection with optional Form B (SPST-N.C.) contact form. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

Surface Mount (SMD) Reed Sensor

Surface mount reed sensor products are an SMT design used in switching and sensing applications. Choose from bare glass or rugged thermoset overmolded versions in SPST-NO, SPST-NC or SPDT changeover contacts. Choose from 9 different switch models from 7mm and up, ranging from 0-100W and switch voltages up to 1,000 VDC as well as 5 different surface mount lead designs. They are typically supplied in tape and reel and are ideal for automatic pick and place.

MK30 Reed Sensor

High voltage surface mount (SMD) MK30 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Gull-wing lead design. UL Approval

MK01 Reed Sensor

SPDT Changeover surface mount (SMD) MK01 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection with high power switch option. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK15-501 Reed Sensor

Best value surface mount (SMD) MK15-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. UL Approval

MK15 Reed Sensor

Normally closed (SPST-N.O.) surface mount (SMD) MK15 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead, high power switch. UL Approval

MK23-501 Reed Sensor

Best value miniature surface mount (SMD) MK23-501 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or helix lead (improved magnetic sensitivity) designs available. UL Approval

MK22 Reed Sensor

Miniature surface mount (SMD) MK22 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

MK16 Reed Sensor

Miniature surface mount (SMD) MK16 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

MK17 Reed Sensor

Ultraminiature surface mount (SMD) MK17 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or J-lead designs available. UL Approval

MK10 Reed Sensor

Ultraminiature surface mount (SMD) MK10 Series Reed Sensor is used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Integrated internal resistor (others available), gull-wing lead design.

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

MK24 Reed Sensor Dimensions

Ultraminiature surface mount (SMD) MK24 series reed sensor used in On/Off control switch, proximity, motion, position detection with optional Form B (SPST-N.C.) contact form. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

Through Hole (THT) Reed Sensor

Through hole (THT) reed sensor products are epoxy encapsulated reed sensors designed for through hole mounting on a printed circuit board (PCB).

MK02/6, MK02/7 Reed Sensor

Ferrous metal detection through-hole mount (THT) MK02/6, MK02/7 Series Reed Sensor in a rectangular housing with cable terminals. Front or above operation.

MK06 Reed Sensor

Miniature through-hole mount (THT) MK06 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. 1 inch (2.54mm) pin spacing available. UL Approval

Ultraminiature Reed Sensor

Ultraminiature reed sensor series range in body length from 8mm and below and are some of the smallest sensors currently available in the world. The MK24 series surface mount reed sensors are the smallest in the industry offered in a normally closed contact form.

MK20/2 Reed Sensor

Ultraminiature (2.7mm) panel mount MK20/2 Series Reed Sensor are supplied in a cylindrically shaped housing with cable terminals. Optional cable, length, and termination. UL Approval

MK17 Reed Sensor

Ultraminiature surface mount (SMD) MK17 Series Reed Sensor used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing or J-lead designs available. UL Approval

MK10 Reed Sensor

Ultraminiature surface mount (SMD) MK10 Series Reed Sensor is used in On/Off control switch, proximity, motion, position detection. Supplied in tape and reel according to IEC 286/part 3. Integrated internal resistor (others available), gull-wing lead design.

MK23 Reed Sensor

Best value ultraminiature bare glass surface mount (SMD) MK23 Series Reed Sensor series used in On/Off control switch, proximity, motion, position detection with high voltage and Form C (SPDT Changeover) options. Supplied in tape and reel according to IEC 286/part 3. Axial, gull-wing, inverse gull-wing, J-lead or helix lead designs available. UL Approval

MK24 Reed Sensor Dimensions

Ultraminiature surface mount (SMD) MK24 series reed sensor used in On/Off control switch, proximity, motion, position detection with optional Form B (SPST-N.C.) contact form. Supplied in tape and reel according to IEC 286/part 3. Axial or gull-wing lead designs available. UL Approval

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