m18 inductance approach switch lj18a3-8-z/bx dc three-wire npn normally open metal sensor

【Functional Use】:LJSeries proximity switches (also known as contactless position switches) operate when they are near metal, and are widely used for controlling machinery and other equipment.

The difference between the "Normally Open (NO)" and "Normally Closed (NC)" types:

One, the common open (NO) is the state where the signal output line is in the open state at normal times, without any signal output. It closes only when an object is sensed, outputting the signal.Second, the normally closed (NC) state is where the signal output line is in a closed state at normal times, continuously outputting a signal. It only opens and turns off the signal when an object is sensed.The two above should be selected according to the actual needs of the customer.