This is a ferrite block magnet with length of 15mm, width and thickness of 6mm, Y30BH grade, using length direction magnetization, strong magnetic surface is 6x6mm, magnetization direction as shown in the figure below, mainly used for all kinds of door or window alarms, our company has many spot specifications to provide, do not have can also be customized, the price is cheap to buy from our source manufacturers.
Door and window alarm magnet block 6x6x15mm length magnetization direction diagram;
Door magnetic alarm usually consists of two parts: a magnet installed on the door frame and a magnetic sensor installed on the door. When the door is closed, these two parts are close to each other, and the magnetic sensor can detect the magnet's magnetic field, which stops the alarm from working. When the door is opened, the distance between the magnet and the magnetic sensor increases, and the magnetic sensor detects the change in the magnetic field, triggering the alarm.
The magnet in the door magnetic alarm typically uses permanent magnet materials, such as ferrite magnets, neodymium magnets, etc. These materials have strong magnetic properties, which can generate a large magnetic field, making the magnetic sensor more sensitive to detecting the opening and closing of the door.
The specifications of the magnet in the door magnetic alarm are usually determined based on the size and installation location of the door. Generally speaking, the size and shape of the magnet can be customized according to the needs to better adapt to different types of doors. In addition, the magnetic properties, working temperature range, and corrosion resistance of the magnet are also factors to consider when selecting a magnet.
Other sizes recommended;