Reed switch door sensor is a kind of device for security alarm. It consists of wireless transmitter and permanent magnet. It is used to detect whether doors, windows, drawers, etc. have been opened or moved illegally.The reed switch door sensors effectively protect people’s lives and property.
The English name reed switch door sensor, there are two ways for gangsters to enter the house through the door: one is to steal the master’s key and open the door; the other is to open the door with the help of a tool. No matter how the lawless person enters, he must push open the door of the house. Once the thief pushes open the door, the door and door frame will be displaced, and the door magnet and magnet will also be displaced at the same time. The (radio wave) signal is immediately transmitted to the host so people knew that someone has trespassed and took action to save the loss ！