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http://www.aliexpress.com/item/CE-met-wireless-water-leak-sensor/424048429.htmlCE met wireless water leak sensor feature:
Water sensor Product introduction:
DIY,use for detecting water leakage.Easy-to-used and operated.Widely for bathroom and any place where needs to protect water leakage.It is including one transmitter and one water sensor.The water sensor is installed in small case.
Specification:
Transmitter index:
1. Triggered by water from water sensor.
2. Working voltage:12V DC, with dry battery model:23A . Low battery voltage about 8V.
3. Working current:less 10mA
4. Static current:less 5 microamp
5. Working frequency:433.92 MHZ+/-2KHZ or 315 MHZ
6. Transmitting distance:noninterference over 100m
7. Emitting frequency:>10mw
8. Frequency tolerance:+/-0.2MHz
9. Operating temperature: indoor -10 ~ 50degree Celsius, related humidity ≤ 95%
10. Power: standby :0.01W, Alarm :0.09W
11. Size: Transmitter: 90 mm(L)×55 mm(W)×22 mm(H)
Water sensor index:
Material:SUS304 Bobber--PP resin
Max switch volt:100V
Max switch current: 0.5A
Max switch power:10W
Working temperature-10--+80 degree Celsius(higher temperature optional)