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eWeLink Sensor-DW02 433Mhz Door Window Alarm Sensor Wireless Automation Anti-Theft Alarm Compatible With RF Bridge For Smart Home Security Alarm System

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Overview:
Door Sensor-DW02 is a door and window alarm sensor. The door alarms can work with Sonoff RF Bridge 433, alarm system, etc.
DW02 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.
*External antenna provided.
*Less than 1μA quiescent current.

Specifications:
Support Battery: 12V 23A (Note: this model doesn't come with batteries)
Wireless frequency: 433.92MHz
Protocol: EV1527
Quiescent current: ≤5μA
Emission current: ≤10mA
Operating environment: -10℃-50℃ (14℉-122℉)
Size: Main body (D*W*H): 71*37*15mm
Deputy body (D*W*H): 70*15*13mm
Package Information:
Package Size: Approx. 9.5*5.6*3cm / 3.7*2.2*1.18in
Package Weight: Approx. 35g / 1.2oz 
Packing List:
1 * Wireless Door / Window Sensor
1 * Set of Mounting Stickers 