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Liquid Level Sensors Capable of Operating in Harsh Environments up to 200°C


High temperature liquid environments have been around for a long time without any accurate, easy method of measuring their liquid levels.  Standex Electronics has solved this problem with their hermetically sealed reed based sensing systems, which allows their float systems to exist in operating temperatures up to 200°C.  Their new liquid level systems can also exist in very harsh liquids as well.  The LS05 series uses a stainless steel housing, offering lengths up to 2 meters, having many switching points, and capable of multiple floats which are ideal when dealing with multiple liquids having different specific gravities…

Full Application Write Up
Harsh Liquid Level up to 200°C


  • Ability to operate up to 200°C
  • Ability to operate in pressurized atmospheres up to 12 bar (170psi)
  • All inclusive fluid level sensor having the sensing element (reed switch), float and magnet all as one component mounted on a PCB internal to the stem
  • Floats available to deal with the buoyancy and harsh effects of oil, gasoline, petrol, brake fluid, etc.
  • Floats also available for water and some acids
  • Dynamically tested contacts
  • Ideal when vertically mounted
  • Multiple float configurations
  • Reed Switches are hermetically sealed
  • Reliably capable of switching millions of operations
  • Stem diameter ranges from 7mm – 16mm
  • Stem lengths can range from 80mm – 2000mm
  • The magnet(s) is not affected by the environment
  • Various mounting threads available


LS04W250.984 LS04
LS05W7-160.276-0.630 LS05
LS01W190.748 LS01 Series Liquid Level Sensor
LS02W190.748 LS02 Series Liquid Level Sensor
LS03W250.984 LS03 Series Liquid Level Sensor

Browse Our Entire List Of Applications Or Search Our Application PDF Library For More Details.


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