TP-Link Tapo Smart Water Leak Sensor

Specific features: Need to use the Hub Alarm decibels: 90 dB Quantity per pack: 1 pc(s) Operating frequency: 868 MHz Power source: Battery Number of batteries included: 2 pc(s) Batteries included: Yes Battery type: AAA International Protection (IP) code: IP67 Operating temperature (T-T): 0 - 40 °C Operating relative humidity (H-H): 0 - 99% Height: 30 mm Depth: 84.5 mm Width: 46.5 mm Warnings: Products may contain batteries which are harmful to the environment and should be disposed of appropriately.