5V relay 1/2/4/6/8/16 relay module 8 channels, with optocoupler relay output 1 2 4 6 relay module 8 channels Low level trigger
USD 2.11USD 2.25
5V relay 1/2/4/6/8/16 relay module 8 channels, with optocoupler relay output 1 2 4 6 relay module 8 channels Low level trigger