Four gas detector operating principle works series rod float level switch is very straightforward and simple. Even on the float inside the pole is equipped with a powerful permanent magnetic carbon monoxide gas detector, when the float rises or falls with the liquid level, the magnetic field generated inside the float will drive rod inside a hermetically sealed reed switch generates a switching action. Flammable gas detector switch action can be normally open) or (normally closed). As shown below: Switch features simple principle, can achieve multi-point control, position the operating point can be customized according to customer needs. Reed opening selection of imported products, life can reach connection times can be customized according to customer requirements, which can be flanged, threaded or quick connector. A switch box can be achieved in a liquid multi-point control, and other types of switches relatively inexpensive. Switch Materials are asked to choose according to their own customers. http://www.dingdinggroup.com/