Wireless Door/Window Contact sensor (DWCA4)
Nice designed door/window sensor, with low battery warning supported.
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The wireless contact sensor is an accessory of smart alarm system.It's fashion design, energy saving, and low battery warning supported. The main panel will send a SMS to user for battery replacement when needed. It's easy to setup and works well with most doors and windows. When transmitter and magnet are apart, the sensor triggers alarm.
Transmitter can be put on either of magnet’s left or right side.
|Working Voltage||DC 3V|
|Battery||1 × CR2032 button battery(3V)|
|Transmission Distance||Without obstacle 500m|
|Weight||35.5g(battery not included) 46.7g(battery included)|
|Dimension||Transmitter: 80.0mm*38.2mm*13.3mm Magnet: 80.0mm*14.8*12.9mm (L*W*H)|