Very bad item, i connected it for a 2 phase installation, the device turned on, then i connected to te wifi via the app, everything was good. However I turned off with the app and I could never turn it up again. Moments later, the app was telling me that It had lost contact with the device. I tried contacting the seller and have never got any answer from him, now the time to open a dispute is over and I can not do anything else. Just a piece of junk.
Very accurate equipment. High quality materials and app is very practical. Very good seller to work with.