PMC Engineering
KMS Series / KA Sensors

The KMS Series of miniature oil contamination & temperature sensors are designed to detect the presence of ferrous material in oil systems. In particular, the sensor can be used to monitor gearbox and transmission oil for signs of gear wear.

The sensor contains a powerful magnet which attracts ferrous material to the extended tip of the sensor, this is measured and presented as a 0.5 to 4.5V signal proportional to the quantity of material detected.


  • Ferrous Detection
  • Miniature Size
  • 5V or 8-16V Supply
  • Integral Temperature
  • Rugged Construction

 KMS Oil contamination & Temperature Sensors - winner of PRI's 2018 Global Media Award

Typical applications include:

Gearbox - Transmission - Engine - Pumps

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