See how many names we can find for the Magnetic switch.
Sometimes people from south of China call it by, Door switch, Alarm switch, Safety switch, Trigger switch, Door contact, Magnetic contact etc.
People from north China usually call it like, Sensor switch, Poximity switch, Position switch, Toggle switch, Door sensor, Door alert switch, Burglar switch etc.
How do you call it please? Contact us and share something with us. Maybe you and Chinese people have the same concept for the same thing :)