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) |