ShellyPlus Uni | Smart Wi-Fi and Bluetooth Operated Module with Dry Contacts | Home Automation | Compatible with Alexa & Google Home | No Hub | Precise Voltmeter | Pulse Counting | Sensor Interface

I've been using UNIs throughout my van. I have 15 or so running. They aren't super durable, but printed 3d cases for them and am careful about the loads I control. The switches are low amp, so use a relay if you are controlling any real load. If you toggle power accidentally, they'll lose their connection to the wireless, but they are easy to add back with the shelly app. The devices work well with Home Assistant, and they are easy to wire up. They seem to handle a range of input power just fine (12v to 13.7v) though I did put eventually wire them with regulated 12v power just in case. The older ones use less power than the new Uni Plus. The new plus versions do seem more solidly built.

These Unis work well for making old garage openers smart and be able to control 2 doors with such a small, prebuilt micro-controller. Small yet it is wifi enabled. The current wifi opener controller is not so great. This Uni is simple and I can make the sensors work as I prefer. I will be using 2 sensors on a single door to check door status, as well as latch status. I use it with a regulated 12V power adapter.I will be using another one for monitoring my car battery. I had situations where the battery became low several times. The Uni is perfect to wire up inside the car as a battery voltage monitor. Is sends me messages when its below the threshold.The Shelly App is easy to use and setup. I can also setup scenes and send notifications to my phone. The Uni has 2 wifi connections, so that I can setup home as well as one from my cell when away. Love the fact that it has 2 inputs and 2 potential-free outputs. The built-in voltage measurement via analog input is very accurate. The power consumption is low. Instructions are great and there is much info online as well. The Uni works as expected.

The Shelly Plus Uni works exactly as described. The setup was straightforward. It has been rock solid using Home Assistant

Understanding the setup to report voltage on a hubitat was a bit counterintuitive, but doable. The wires are pretty small and an inconvenience, but the board is super compact. For the price, it is a value.

I’ve been looking for a WiFi voltage monitor and auto generator start for years. This Shelly provides the perfect solution to allow me to have my RV off grid but to monitor and charge my batteries from my home or anywhere else in the country.

Shelly does the job and does it efficiently, discretely, humbly and right.It does not force you to use someone's "cloud", does not force you to share your personal information, does not require you to know soldering or programming.I can solder, I can code but shelly turns out to be quicker and more reliable solution to nearly all my home automation projects.

I used 3 of these to handle the deployment, tracking and retraction of my 2.2Kw residential heliostat here in California. It's been a year now and the Shelly's haven't skipped a day

So useful for so many things. I have 4, wish I had more, and have plans for more beyond that.