CentraLite 3-Series Moisture Sensor is a small, easy to use water sensor that can be fit almost anywhere. Their specifications are as follows:
1.49" x 0.85" x 2.34"
ZigBee HA 1.2
Compatible with all ZigBee HA 1.2 platforms and also with
Operating temperature: 0 to 40°C
Storage temperature: -20 to 50°C
Humidity: 0 to 90% R.H.
3-year limited period warranty