The intelligent door/window contact alarm adopts a split magnetic induction sensor design, which judges the open/closed status of doors and windows by sensing magnetic field changes. Once a status change of doors or windows is detected, the device sends alarm messages to mobile terminals and the computer-based central management platform through 4G/NB-IoT IoT, together with voice call and SMS notifications.
• Communication Network: NB-IoT
• Standby Current: <10 µA
• Operating Current: ≤200 mA
• Battery Spec: Lithium Manganese Battery DC 3V / 1500 mAh
• Standby Duration: 1 year (no more than 10 transmissions per day)
• Maximum Gap Between Transmitter and Magnet: ≤15 mm; align the arrow marks on the transmitter and magnet during installation
• Supports uploading of battery level and signal strength data
• Low battery and weak signal alarm functions available
• Operating Temperature: -10°C ~ 50°C
• Housing Dimensions: Transmitter 934020 mm; Magnet 641220 mm