Household Electricity Monitor (Alnwickhill EH16)

A household electricity monitor, provided by Scottish Gas (although should work with any electricity supplier) around 10 years ago. This is pre Smart Meter, and has largely been made redundant by Smart Meters: you attach it to your electricity meter and it tells you your total household electricity consumption.

I think I turned it on once ten years ago, realised I didn't want the hassle of installing it, and packed it away in its box again. Since then it's been unused.

Comes with everything that it would have originally come with, including the instruction manual.