1、Intelligent Linkage: The water leak detector has an intelligent valve linkage function that automatically closes the valve when a leak is detected. 2、2 Alarm Methods: The water leak alarm has 2 alarm methods, on site high decibel alarm and cell phone remote alarm. 3、Excellent Performance: High sensitivity, quick response time, stable performance and high reliability of the water leakage alarm sensor. 4、Water Leak Prevention: Water leak detectors allow you to receive alerts when water or cold temperatures are detected to ensure your home from flooding and water damage. 5、Applications: Smart water sensors can be placed anywhere in your home where there may be a water leak, such as the basement or laundry room. 1 x Smart Water Leakage Detector 1 x Sticker2 x Screw1 x Instruction Item Type: Smart Water Leakage Detector Material: ABSColor: WhiteBattery Type: 2 x AAA batteries required (not included)RF: 2.4GHz- 2.484GHzWireless Protocol: IEEE 802.11b/g/nTransmit Power: 802.11b:17dBmz±2dBm at 1Mbps 802.11g:15dBmz±2dBm at 54Mbps 802.11n:13dBmz±2dBm at MCS7 HT20Receiving Sensitivity: 802.11b:-91dBmz at 11Mbps8%per 802.11g:-75dBmz at 54Mbps10%per 802.11n:-72dBmz at MCS7 HT20 10%perVector Error EVM: 802.11b:≤35% 802.11g:28dBm maximum 802.11n:-28dBm maximum at MCS7 HT20