I am unsure if my understanding of dry contact sensors is accurate.. I need to control a fan from two different sources (C02 lasers). I attempted to find a dual input single throw relay that would work, but it appears that won't work.. My next idea was to use two dry contact sensors to control a smart switch, since I can build the logic in the rules..
the lasers trigger a constant 24v signal when in use. Can I pair this to a dry contact sensor and then trigger the on / off of the smart switch with it? If so, can someone recommend a cheap dry contact sensor for this, or something else entirely?
If I'm understanding correctly, the 2 inputs sort of doesn't matter since you want the relay output to turn on when either of the input sources are triggering it?
As already mentioned the Zen17 or zen16 should work. I'd also recommend taking a look at shelly relays since they work awesome with hubitat with the built-in drivers. I'm using a couple shelly 1s for garage doors and another for a ceiling fan that unfortunately passes through the wiring to a couple outlets in the room so I want it "always hot".
