Relay interface boxes.
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B3 Boxes, Relay BoxesB3-RLY2-USB
$65.00A USB powered dual relay box with one way serial for relay control. Handy when you need to add a couple of relays outputs but only have a com port…
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B3 Boxes, Relay Boxes
Dual Channel Serial Relay Box
$65.00A DC (9-24v) or USB (5v) powered dual relay box with one way serial for relay control. Handy when you need to add a couple of relays outputs but only…
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