Precipitation detector, types FRA616D and FR8616D

The sensor reacts to precipitation in the form of either rain or snow within just a few seconds. It detects even very slight precipitation. The precipitation detector reacts by switching a relay. It does not provide a continuous measuring signal; it operates with a step function : If it detects precipitation, display in ALMEMO® measuring instrument : 1.0000, if it does not detect precipitation, display in ALMEMO® measuring instrument : 0.0000. The precipitation detector is designed for use for example in automatic ventilation or shading systems, or in automatically controlled greenhouses, etc.