WiFi Water Sensor Specifications: Beeps and send alert when a leak is detected WiFi Water Leak Sensor Battery: CR2 x 1 WiFi Water Sensor Standby time:5 years WifI Water Sensor Standby current: 10uA Use time:4 years (2 times/month) Wireless Type:2.4GHz Protocol:IEEE 802.11b/g/n Water leak sensor Wifi distance:45m Operating Temperature:0~ 40 (32°F~104°F) Water Sensor Waterproof:IP55. Product size(D*W*H): 68x 68x 24mm