1 Channel Relay Board 5V High Low Optocoupler

1 Adopt patch photocoupler isolation, strong driving ability, stable performance. Trigger current is 5mA. 2 Module operating voltage is 5V,12V,24V for choice. 3 Each path of the module can be triggered by the high level or low level through a jumper setting. 4 Fault-tolerant design,even if the control line breaks,the relay will not move. 5 Power indicator light (green), 4-way relay state indicator light (red).

What's in the box
1 x Optocoupler Relay