无线发射模块 和磁块两部份组成，在无线发射模块有两个箭头处有一个"钢簧管"的元器件，当磁体与钢簧管的距离保持在1.5厘米内时，钢簧管处于断开状态，一旦磁体与钢簧管分离的距离超过1.5厘米时，钢簧管就会闭合，造成短路，报警指示灯亮的同时向主机发射报警信号。 The door magnet is composed of a wireless transmission module and a magnetic block. There are two components of a "steel spring tube" at the two arrows of the wireless transmission module. When the distance between the magnet and the steel spring tube is kept within 1.5 cm, The steel spring tube is in the disconnected state. Once the distance between the magnet and the steel spring tube exceeds 1.5 cm, the steel spring tube will be closed, causing a short circuit, and the alarm indicator will be turned on while the alarm signal is transmitted to the host.
(1) Door (2) Drawer (3) Safe (4) Window
3. Installation precautions
A. Is the IC code correct? B. Try to shorten the distance to the host. C. Try not to have steel concrete walls and electrical appliances between the host and the device. D. The installation location must be protected from rain and moisture.
4. Analysis and treatment of common faults
A. The host cannot receive the alarm signal of the door sensor (1) Check whether the door sensor IC code is correct (2) Check the distance between the door sensor and the host and pull out the antenna on the wireless door sensor transmitter. 。 (3) Check whether the battery is charged or whether the battery buckle is connected. (4) Check the surrounding environment where the door sensor is installed. (5) Check whether the circuit board of the door sensor is damaged. 1) Check whether the solder joints on the circuit board are loose or fall off. (2) Check the battery capacity. (3) Check whether the circuit board is damaged. C. Install the transmitter on the door frame as much as possible and the magnet on the door to reduce The transmitter was shaken and fell off .
> Working voltage: DC3V (button cell battery)
> Static current: ≤10uA
> Working current: ≤15mA
> Working temperature: -10 ℃ ~ + 50 ℃
> Emission distance: ≥120m (open distance)
> Door magnetic detection distance: 25-35mm
> Undervoltage detection point: 2.2 ± 0.2V
> Wireless encoding format: 1527
> Transmitting frequency: 315MHz / 433MHz / 868MHz (optional)