1PCS SONOFF DW2-RF-433MHZ Sensor Door Window Alarm Sensor RF 433Mhz Wireless Automation Anti-Theft Alarm Compatible With RF Bridge For Smart Home Security Alarm System

Overview:
SONOFF DW2-RF-433MHZ Sensor is a door and window alarm sensor. The door alarms can work with Sonoff RF Bridge 433. SONOFF DW2-RF-433MHZ door alarm sensor detects the opening status and immediately sends alarm notification message to the APP. 

Features:
*Send the alert to your smartphone when the door/window is opened.
*Open the door to trigger lights on/off.
*Compatible with IFTTT service to set more routines.
*Share the sensor to make more users know the status of home.
*Can check history records last 3 months.
*Low power consumption technology maximize the battery life - up to 2 years.
*Easy to install and remove.

Specifications:
Support Battery: 12V 27A 
Wireless frequency: 433.92MHz
Protocol: EV1527
Quiescent current: ≤1.5μA
Emission current: ≤20mA
Operating environment: -10℃-50℃ (14℉-122℉)
Battery type: Alkaline battery (Note: this model doesn't come with batteries)

Packing List:
Sonoff DW2-RF-433MHZ Sensor (1/2/3/4/5/6/8/10PCS Optional)