Feature 1Intelligent Linkage: The water leak detector has an intelligent valve linkage function that automatically closes the valve when a leak is detected. 22 Alarm Methods: The water leak alarm has 2 alarm methods, on site high decibel alarm and cell phone remote alarm. 3Excellent Performance: High sensitivity, quick response time, stable performance and high reliability of the water leakage alarm sensor. 4Water 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. 5Applications: Smart water sensors can be placed anywhere in your home where there may be a water leak, such as the basement or laundry room.SpecificationItem Type: Smart Water Leakage Detector Material: ABSColor: WhiteBattery Type: 2 x AAA batteries required (not included)RF: 2.4GHz-2.484GHzWireless Protocol: IEEE802.11b/g/nTransmit Power: 802.11b:17dBmz2dBm at 1Mbps802.11g:15dBmz2dBm at 54Mbps802.11n:13dBmz2dBm at MCS7 HT20Receiving Sensitivity:802.11b:-91dBmz at 11Mbps8%per802.11g:-75dBmz at 54Mbps10%per802.11n:-72dBmz at MCS7 HT20 10%perVector Error EVM: 802.11b:35%802.11g:28dBm maximum802.11n:-28dBm maximum at MCS7 HT20 .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Smart Water Leakage Detector1 x Sticker2 x Screw1 x Instruction