2 Channel 5V Optocoupler Isolation Relay (ARD158E)

1 Channel 5V Relay optocoupler Isolation Module (Red)

Module size:

1 Road: 50 * 25 * 18.5MM

Road 2: 50 * 41 * 17.5MM

4: 75 * 51 * 16.5MM

8: 142 * 52 * 18MM

Module interface:
1, DC +: the positive supply (voltage relay according to the requirements)
2, DC-: negative one
3, IN: can be high or low level relay control
Relay output:
1, NO: normally open relay interfaces, floating suction before closing the relay, after the short circuit is absorbed and COM
2, COM: Common Interface Relays
3, NC: normally closed relay interfaces, COM and close the front relay short circuit, the pull vacant