AMETEK makes liquid level sensors for any liquids found on aircraft: OilHydraulic FluidFuelWaterWaste 8TJ209 Capacitive Oil Level Sensor DatasheetCapacitive Technology Complements AMETEK's Existing Designs AMETEK is the world leader in the design and manufacture of aircraft engine lube oil sensing devices. Introduced in the 1960s, AMETEKs potentiometric devices continue to be selected for their accuracy, value and reliability. With the introduction of a capacitive device, AMETEK is now able to offer a complementary technology for those applications where existing interfaces and continuous resolution are key factors. The AMETEK family of oil level sensor products is the unquestioned choice for todays challenging engine applications.