SONOFF- Electric Valve - EWelink Smart WIFI switch for GW-RF water valve home automation system Gas / water

Voice control, suitable for Amazon Alexa and Google Home.
Wireless water shutdown controller for standard home automation systems.
Prevents water damage (adds water leak sensors).
Water shutdown and smartphone notification when a leak is detected.
Easy installation, no plumbing required.
Compatible with the mobile phone application remote control on / off and synchronization.
Compatible with water tube ball valves, electrical switches, manual control, and natural gas / liquid / tap, etc.
Specification
*Input: DC 12V/1000mA (adapter is included)
*Gross Weight: 500g
*Wireless:2.4G WiFi+433MHz RF
*RF sensor limited: Up to 25pcs water sonser/gas sensor
*Waterproof: Yes
*APP: eWelink