The water sensor H20-ECO is a battery less, maintenance-free and wireless sensor to detect water. A swelling device is attached on the lower side of the sensor. As soon as it comes in contact with water it starts soaking it up and sends a radio signal. One swelling process takes up to six minutes, after the sixth procedure it will take up to an hour. After ten swelling processes the sensor needs to be replaced. EnOcean Equipment Profile (EEP) F6-05-01, IP43.
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