Ⅰ. Features: Ⅱ. PROTECTING YOUR PROPERTY FROM WATER DAMAGE: Placed in any area with risks for potential water damage, such as a flooding basement, washing machine leaks, hot water tank failure, etc Ⅲ. Mobile APPs control, connected to the networks via wifi, remote control at any time, you will receive a notification if there is a leaks. Ⅳ. Up to 85DB Alarm: Get alarted with its 85DB sirens and mutes the alarm with one-touch. Ⅴ. Flexible Placement: Wireless, designed to place in anywhere leaks or flooding may occur, like under the sinks, near washing machine, bathtubs and more. Ⅵ. Battery Operated: Easy to install, easy to use. Battery operated to maintain protection during power outages Ⅶ. Notice: Ⅷ. 1.Actual color may be slightly different from the image due to different light effect Ⅸ. 2.Please allow 1-3cm deviation due to manual measurement Ⅹ. Voltage: 2 3V AA batteries (batteries not included in delivery) Ⅺ. Alarm sound: 85DB Ⅻ. Package List: XIII. 1/2/3pcs WiFi Water Sensor