Reed switch can be used as a sensor for counting and limiting. For example, there is a bicycle kilometer meter, which is formed by sticking magnets on tires and fixing reed switch on one side. Install the reed switch on the door, which can be used as an alarm when opening the door. Besides, it can also be applied to other sensors and electronic devices, such as liquid level meters, door magnets, reed relays, etc.
1. reed switch has the advantages of small size, light weight, easy installation and unobtrusiveness. Because the operating switch is small in size and does not need complicated cams or cranks, metal fatigue does not occur and almost unlimited service life is guaranteed. And can be installed in a limited space, which is very suitable for micro equipment.
2. The switch parts of the reed switch are sealed in inert gas and do not contact with the external environment, which greatly reduces the oxidation and carbonization of contacts caused by contact sparks in the switching process. And prevent external steam, dust and other impurities from eroding joints, thus having long service life.
3. The reed is thin and short, with high natural frequency, which improves the on-off speed of contacts, and the switching speed is 5-10 times faster than that of ordinary electromagnetic relay.
