I asked the engineer if I needed to have one as I've got the utilita app?
No if you don't want too he said , and put it back in the box..
I do feel that unless you haven't got a smart phone these in home displays are another piece of gadgetry hanging around the house using electricity ..
Download the app and help save the planet all these in home displays end up in landfill or incinerated AND add to the costs of supplying electricity..
Now the government have switched off 3G surely there cannot be many people who cannot put the app on their phone..
With the app if you're in America you can still check on your electricity..
If you don't use your in-home display, next time a engineer offer's you one say no ✋..
Get the app 👍