To check if you have one, take a look at your meter. If it's an RTS meter, you'll see a transmitter or separate teleswitch box next to your electricity meter. It should have a ‘Teleswitch’ label on ...

A black Radio Teleswitching System (RTS) box on a board Hundreds of thousands of people are at risk of losing hot water or heating when their old type of electricity meter goes out of action.