British Gas minim - Was given to me a couple of weeks ago by my Mum who didn't have any need for it, and now I've decided I don't need it so am selling it on. It's basically an electricity meter. You place a plastic clip round one of the thick cables going into your electric meter and it then reads how much energy you are using in real time. It helps you see how much electricity each of your appliances uses, adds up your daily spend on electricity etc... It's a handy little gizmo, but I don't need it. I have no box for it but do have the instructions. £25 delivered, I'm not prepared to drop the price as it's £34.99 new and postage will be expensive due to the three chunky batteries that power the transmitter.