CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power - Demo board

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power 1

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power 2

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power 3

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power 4

CNC timing relay module Sound and light alarm 0 999S timing Optocoupler isolation 6 36V power 5