GERUI Pack of 5 1 channel 220 V AC optocoupler module/220 V optocoupler isolation microcontroller/detection of 220 V voltage presence/can be connected to PLCs, TTL level output music_update_2021 8 Inch Rhythm Natural Hardwood

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GERUI Pack of 5 1 channel 220 V AC optocoupler module/220 V optocoupler isolation microcontroller/detection of 220 V voltage presence/can be connected to PLCs, TTL level output music_update_2021 8 Inch Rhythm Natural HardwoodGERUI Pack of 5 1 channel 220 V AC optocoupler module 220 V optocoupler isolation microcontroller detection of 220 V voltage presence can be connected to PLCs, TTL level output Product Features Basic: 1 channel optocoupler insulation module, which is mainly used to detect the presence of 220V AC, which is efficient and practical, designed for testing or detection. Input and Negative (OUT and GND): The input port is connected to the signal output OUT