TP-Link Tapo Smart Water Leak Sensor

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