3pcs DW1 433Mhz Door Window Sensor Compatible With SONOFF RF Bridge For Smart Home Alarm Security

Description DW1 is a door and window alarm sensor The door alarms can work with Sonoff RF Bridge 433 DW1 door alarm sensor detects the opening status and immediately sends alarm notification message to the app Features Ultra low power magnetic dedicated microprocessorSupports wireless frequency of 433 92MHz200m wireless transmit distanceBuilt in antenna providedLess than 1μA quiescent current Specifications Support Battery 12V 23A Wireless frequency 433 92MHzProtocol EV1527Quiescent current ≤5μAEmission current ≤10mAOperating environment 10℃ 50℃ 14℉ 122℉ Product Size 77 49 5 18 8mmBattery length 27mm diameter 10mm this package doesn t come with the battery Weight 45g Package included 3 x DW1 433Mhz Door Window Sensor