5V 4-Channel Relay Module Shield for Arduino ARM PIC AVR DSP Electronic
Color: blue
Dimension: Approx. 7.5x5.5x2cm
Materials: PCB board and electronic components
Package Includes:
1 X 5V 4 channel relay module
In static bag package
Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.