Features: 1.Alarm: You can receive alerts when water or low temperatures are detected, protects your home from flood and water damage. 2.Excellent Performance: Flood detection alarm sensor has high sensitivity and faster response, stable performance and high reliability. 3.2 Alarm Modes: Water alarm sensor has 2 alarm modes, on site high decibel alarm and mobile phone remote alarm. 4.Intelligent Linkage: Intelligent valve could linkage, and the valve can be automatically closed when the water leakage is detected, no need to rush home. 5.Application: Smart water sensor can be placed in your home anywhere moisture could be a problem, such as the basement or laundry room. Specification: Item Type: Water Leakage Detector_x000D_ Material: ABS_x000D_ Application: With buzzer_x000D_ Power Supply: 2xAAA battery 3V (not included)_x000D_ RF: 2.4GHz-2.484GHz_x000D_ Wireless Protocol: IEEE802.11b/g/n_x000D_ Transmitted Power: _x000D_ _x000D_ 802.11b: 17dBmz1Mbps at 2dBm_x000D_ 802.11g: 15dBmz54Mbp at 2dBm_x000D_ 802.11n: 13dBmz2dBm at MCS7\U HT20_x000D_ _x000D_ Receive Sensitivity: _x000D_ _x000D_ 802.11b: -91dBmz at 11Mbps8%per_x000D_ 80211g: -75dBmz at 54Mbps10%per_x000D_ 80211n: -72dBmz at MCS7\U HT2010%per_x000D_ _x000D_ Vector Error: _x000D_ _x000D_ EVM 802.11b: 35%_x000D_ 802.11g: 28dBm maximum_x000D_ 802.11n: -28dBm maximum. at MCS7\U HT20_x000D_ _x000D_ Operating Temperature: -10 - +40_x000D_ Storage Temperature: -20 - +60_x000D_ Relative Humidity: 8%-80% PackageList: 1 x_x000D_ _x000D_ WaterLeakageDetector 1 x Sticker 2 x Screw 1 x User Manual