It is a DC 3.3V 5V 8-Channel Optocoupler Isolation Module.It can detect 8-Channel DC input power sources and output DC voltage according to the detection results. The output results can be applied to PLC system and other control equipment. It can detect whether there is input power. The output status will change when the input power is detected. NPN/PNP Signal Output: Supports both NPN low level and PNP high level signal output modes for compatibility with various control systems and equipment Application:DC power detection,PLC control system.Device alarm
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