China Recessed Magnetic Door Sensor 433MHz, Find details about China Recessed Magnetic Door Sensor, Magnetic Reed Sensor from Recessed Magnetic Door Sensor 433MHz
The reed switch is an electrical switch operated by an applied magnetic field. ... The switch may be actuated by an electromagnetic coil, making a reed relay, or by bringing a permanent magnet near it. When the magnetic field is removed, the contacts in the reed switch return to their original position.
What are magnetic reed switches used for?
A reed switch is an electromagnetic switch used to control the flow of electricity in a circuit. They are made from two or more ferrous reeds encased within a small glass tube-like envelope, which become magnetised and move together or separate when a magnetic field is moved towards the switch.
Working voltage | 12V23A battery |
Quiescent current | ≤1.5uA |
Alarm current | ≤10mA (a battery can transmit signals 20,000 to 30,000 times) |
Separation threshold | 3.5cm |
Transmitting frequency | 315/433MHZ |
Coding method | 1527 (learning code) |
Transmitting distance | I also interfere with the distance not less than 40 meters in the open |
Installation method | screw fixed |
Applicable scenarios | installed on rolling gates or iron gates such as shops/garages/warehouses |