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$4.50 each
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Product Description
Ideal for use with Arduino and other microcontrollers, this relay module uses data signals to switch a 5V relay. Onboard LED indicators light when relay is switched. Screw terminals for relay outputs. 0.1" header for voltage and signal input. 44 x 27 x 18mm. 2-relay (CAT# RLM-2) and 4-relay (CAT# RLM-4) modules are also available.
WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
(This item was manufactured prior to August 31st, 2018)

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