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 × CR123A button battery(3V)|
|Transmission Distance||Without obstacle 1000m|
|Weight||22g(battery not included) 38g(battery included)|
|Dimension||Transmitter: 84x26x22mm Magnet: 34x11x9mm (LxWxH)(±0.1mm)|