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)|