Door magnetic detector is used to detect whether doors, windows, drawers, etc. are illegally opened or moved. It consists of wireless transmitter and magnetic block.
Some household door and window burglar alarms are very simple. When installing, just install some of them on windows and some on walls. Normally, the two are locked together, when there is any movement in the window, the device will send out a harsh alarm to remind the residents of intrusion, and also warn the intruders that they have been found and drive away the intruders. If the owner wants to go in and out by himself, it can be freely controlled by the switch. Such alarms are also suitable for offices and shop counters. This kind of power-on and non-power-on batteries and button batteries are used. Button batteries can be replaced after more than half a year of normal service time. However, rechargeable batteries need to decide the usage time according to the battery performance.
Different home doors and windows anti-theft alarms have different effects and are also applicable to different places. When purchasing, you need to choose according to your own situation. If there are people at home, you only need to choose a simple alarm device. If you go out for a long time without worrying about the situation at home, you can install a remote alarm and notify others to check the situation after receiving the signal.
Although many people have installed security window and so on, it is inevitable that evil hands will reach into their homes. In addition, the aging of the windows will inevitably lead to accidents. In order to prevent accidents, it is also necessary to install household door and window burglar alarms.
