Campbell Scientific CS475 Radar Water-Level Sensor

The CS475 Radar Water-Level Sensor emits short microwave pulses and then measures the elapsed time between the emission and return of the pulses. The elapsed time measurement is used to calculate the distance between the sensor and the target (e.g., water, grain, slurry). The distance value can then be used to determine depth.

The maximum measureable distance is 20 meters.