Using Universal Level Sensors in Water and Wastewater Vacuum Trucks

What compact single liquid level sensor has no moving parts, reliably detects various media such as hydraulic fluid, engine oil, fuel, coolant, and tank water, and withstands high vibration in vacuum trucks?

Vacuum trucks are used for the safe extraction and transport of wastewater. Accurate, reliable level detection of various fluid types is required from windshield washer fluid to high-pressure hydraulic oil.

Vacuum extractors require feedback on the status of all fluid level containers on their vehicles, but they struggle with the different types of sensors required. The manufacturer and fleet maintenance potentially need to buy and stock several different styles of these liquid level sensors.  Many different part numbers, in lower volume, lead to increased costs and add to stocking and replacing more parts than needed.

Gems Liquid Level Sensors


Use the Gems Sensors’  ULS-100  Universal Level Sensor to monitor water and wastewater vacuum trucks.

Universal Level Sensor

The Universal Level Sensor does not rely on the characteristics (for example varying specific gravities) of the fluid to detect its presence or absence. It will reliably detect almost any liquid. With its robust stainless steel compact housing, IP6k9k rating (direct pressure wash-down spray), and wide operating temperature range, the Universal Level Sensor is perfect for the most demanding conditions often present in Vacuum extraction equipment. Having one dependable sensor, with no moving parts, to replace the many types often required will overcome common functional and conditional limitations, ease product selection and reduce inventory.

Universal Level Sensor Features & Benefits: 

  • No moving parts
  • Small footprint – compact design
  • Durable sealed design –IP6k9k 
  • Ease of use – simple installation
  • Wide temperature range
  • Good in harsh environments