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Radar technology works by sending out short microwave signals toward the liquid via the sensor. The microwave signal then hits the liquid surface and bounces back toward the sensor.

Everyone has heard of radar before, whether that be used for ships to help in navigation and collision avoidance or when watching your local TV news channel report on the weather with their Doppler Radar equipment.

Many Gems sensor products offer a linear 4-20 milliamp (mA) output signal for transmitting to a receiver (meter/display, PLC, etc.) when measuring level or pressure.

Fuel Cells are a green alternative to traditional fossil fuels like gasoline or diesel.

Electrical noise is the source of many problems in control circuits. Signal and sensing circuits usually operate at lower voltage levels, and the lower that voltage is, the more vulnerable it is to noise.