The Working Principle of Wireless Door Sensor
Wireless door sensor is composed of wireless transmitting module and magnetic block sections, and the wireless transmitting module, there are two arrows have a steel reed pipe components, when the magnet and steel spring tube keep within 1.5 cm, steel reed pipe in the off state, once the magnet and steel spring tube separation distance of more than 1.5 cm, steel spring tube will be closed, cause short circuit, alarm indicator at the same time fire...
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