Configurable Active High or Low Relay Module, with opto-isolated input
Check out this relay module, with configurable active high or low input (high or low trigger), the input is opto-coupler, isolated. There are standard relay breakout to screw terminal of NC, COM and NO. This is 5V activated relay.
Single Channel:https://www.cytron.io/p-1ch-active-h-...
4 Channels: https://www.cytron.io/p-4-ch-active-h...
8 Channels:https://www.cytron.io/p-8-ch-active-h...
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