Numato 4 Channel Solid State Relay breakout module is a smart choice for controlling higher current loads from your microcontroller development board, PC parallel port or your favorite Arduino. This board has four on-board Solid State Relays which can switch up to 3A. All relay terminals are accessible through screw terminals which makes wiring up the board very easy. The relays are driven by popular darlington array ULN2003.
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