Level Sensors

Level Sensors

Auxitrol Weston has become a leader in sensors for measuring level in engine lube oil tanks and has delivered parts for more than 15 years and achieved > 20 million flight hours including use on recent engine programmes.

The sensor operating principle is based on a resistive/potentiometric technology with the design as a network of reed switches and resistors activated by a magnetic float moving along an inner tube. This assembly is integrated in an external tube which plays the role of both a liquid movement damper and mechanical structure.

Lube oil temperature measurement can also be implemented in the same device depending upon the application. Low oil level measurement is possible using a platinum RTD.


  • Linear resistance/voltage output
  • Operating Temperature: -55°C to 190°C
  • Accuracy: up to ±5mm
  • Current or voltage supply
  • Vibration capability up to 50g across the standard bandwidth


  • Full hermetic stainless steel design

This helps us prevent spam, thank you.