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)
Working Current ≤27mA
Standby Current ≤2μA
Transmission Distance Without obstacle 500m
Transmission Frequency 433.92MHz
Working Temperature -10°C~50°C
Humidity ≤90%rh (non-condensing)
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)