Magnetic switch is the magnetic switch intrusion detector. It is composed of magnet and reed pipe. Dry reed pipe, also known as tongue reed pipe, is constructed by packaging 2 or more metal reeds in a sealed glass tube filled with inert gas. According to the different structure of the tongue spring contact, the tongue spring tube can be divided into three types: normally open, normally closed and convert. Features and precautions

Small size, simple structure, light weight, less power consumption, easy to use, cheap price, sensitive action, good corrosion resistance, long life. The spring pipe is installed on the protected door frame and window frame, and the magnet is installed on the door or window sash in the corresponding position. The installation should be concealed to avoid being damaged. The installation distance between the reed tube and the magnet is generally about 5mm. The installation should avoid violent impact and prevent the damage of the tongue reed tube. The ordinary magnetic switch is not suitable for steel doors and Windows, because steel doors and Windows will weaken the magnetism of the magnet and shorten the service life. Must install, to use special magnetic switch.