Note on 23 Jan 2018 : This item now has board in color blue.
This is an assembled board of relay switch. The relay switch is optically isolated from the trigger signal. Triggering level is 5V and can be set as active low or active high. The relay can sustain 10A of current.
Supply voltage : 5VDC.
Board Dimension : 53mm x 18mm x 18.5mm
We do air shipping worldwide at US$5.00.