Shelly Plus AddOn +2DS

Wired this into my Plus setup for a second temperature sensor and the two dry contacts are perfect for monitoring a door and a window. The compact size made it easy to tuck behind the switch, and it picked up right away with no configuration headaches. Solid add-on if you need extra inputs without b

The two extra dry contacts give me the flexibility I need, and the wiring was straightforward even for a novice like me. It took a bit of fiddling to get the sensor input recognized in the app, but once it was set up, it’s been rock solid for a week now.

The two extra dry contacts are exactly what I needed for monitoring a secondary thermostat, and the wiring terminals are clearly labeled. Took me a few minutes to get the firmware to recognize it, but once it did, it’s been rock solid.