Point Level Switch

SSI Technologies, LLC's Point Level Switch/Sensor (PLS) is a durable and economic control module for reliable limit level control OEM applications. The Fluid-Trac™ PLS comes in a compact package that combines – a smart point level ultrasonic level sensor, internal temperature compensation, embedded software, and three low side output circuit drivers. The Fluid-Trac™ PLS control module was designed for versatile external control capability. It can be interfaced to Relays, Switches, Pumps, Valves, Audible Alarms/Buzzers and Flashing Alarms.

Listed below are a few of the typical OEM applications:

Single Point Control – Fluid-Trac™ PLS can keep a tank from running dry or overflowing. The PLS can be factory programmed with a critical level set point so that whenever the set point is reached, the low side driver will close the circuit to allow a pump to turn on or open a valve.

Multiple Point Control – Fluid-Trac™ PLS can be used for liquid level regulation to either keep a tank between two or three critical level set points or to activate two or three different external operations at each critical set point. Monitoring liquid levels to the factory programmable limit level set points allows for activation of pumps, valves and external alarms (audible, flasher, LED).

For original equipment manufacturers, SSI engineering can customize the Fluid-Trac™ PLS embedded software to provide the best solution for your unique application needs.

Minimum order quantity of 100 units, test samples are available for larger opportunities.

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Product fluidtrac

Typical Applications

  • Coolant
  • Transmission Fluid
  • Oil Pan Switch
  • Brake Fluid
  • Washer Fluid
  • Water Reservoirs
  • Ice.

Typical Markets

  • Automotive
  • Motorcycle
  • Mass Transit
  • Heavy Truck
  • HVAC and Industrial
  • HVOR
  • Autonomous Vehicles


Need a different connection method, a specific output format, or other customization options?

Contact SSI Technologies, LLC, and we will help design the perfect product for your application.

Point Level Switch Document Library

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