Could anyone point me toward a relay, preferably VERY small, that can be powered by 9v DC and can control a 9v DC load?
Not sure where you're based but a simple search brought back a wide choice here https://uk.farnell.com/c/switches-relays/relays/power-relays?coil-voltage=9vdc
If it's a standard (non smart) relay you're looking for then as @EVOLVING.HOME says Farnell or RS will have plenty. If you mean you're looking for a relay device that can be directly integrated with hubitat then look at the Fibaro Smart Implant. That has two inputs, two outputs (can be configured independently or linked), can be powered with 9 - 30V DC + or - 10%. The outputs are potential free and are rated at up to 30V DC/20V AC 150mA maximum. And it's tiny...
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I would second the Smart Implant. It's surprisingly versatile, the only real issue that I've ran into is that you cant power it with 5v. That eliminates using a USB charger for a power supply. But since you want it to run on 9v anyway...
I think the Fibaro Smart Implant is going to work! Thanks!
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They're a great little device. I have one for my alarm system - inputs monitoring the set status and outputs setting/unsetting the system; then I've another that's integrated with my Bed TV lift.
If you get one, you want the community driver as it's far more configurable and allows the inputs to be isolated and used separately from the outputs.
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