3pcs SONOFF® DW1 433Mhz Door Window Sensor Compatible With 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 microprocessor Supports wireless frequency of 433.92MHz 200m wireless transmit distance Built-in antenna provided Less than 1A quiescent current Specifications: Support Battery: 12V 23A Wireless frequency: 433.92MHz Protocol: EV1527 Quiescent current: 5A Emission current: 10mA Operating environment: -10-50 (14-122) Product Size: 77*49.5*18.8mm Battery: length 27mm, diameter 10mm, this package doesn't come with the battery. Weight: 45g Package included: 3 x SONOFF DW1 433Mhz Door Window Sensor