I found a sensor for measuring how much electricity you use (where you put the sensor around your main electricity cable). It's supposed to be paired with a smart meter, and it's branded British Gas.
I'm not sure it works.
Collect from G42 (Albert Avenue). Please mention in your reply when (roughly) you'd be able to collect, which can be in a few days (I'm not in a hurry)
Fair Offer Policy: I'll wait for a few days before selecting, so folks on the digest have a chance to reply.