Shelly Plus AddOn +1DS

Got my dry contact sensor hooked up through this add-on in about twenty minutes and it’s been rock solid ever since. The extra input on the board is a lifesaver for anyone mixing older switches with the Plus system.

Took me under ten minutes to wire this into my existing setup, and the extra dry contact input means I finally hooked up a water leak sensor without running new cables. Solid little board, does exactly what it’s supposed to do.

Wiring up a second door sensor took me about ten minutes thanks to that extra dry contact input, and it’s been rock solid for two weeks now. The add-on just snaps onto the existing Plus unit without any messy rewiring headaches, which is exactly what I needed for my garage setup.