Wireless 433 MHz flood and temperature sensor. It detects when the temperature drops below 5ºC. Includes floor or wall support. Ideal for detecting leaks in pipes and other small spaces due to its small size. Power supply: 3 CR2450 lithium batteries. Operating temperature: 0 to 49ºC. RH: 5 to 100% non-condensing. Dimensions: Ø64 x 9 mm.