8ch DC 12V Pro mini Relay Shield Module PLC Timer Board for Arduino UNO MEGE2560
28,96 €
3 on-board resources: 8x opto-isolated inputs (low level trigger, NPN type), 4x buttons, 1x 4 bit digital tube display, 1 pair of Pro mini slots, 8 relay outputs. How to use : See video " IO22C04 pro mini delay relay demo"(You can search for videos on GOOGLE).
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