For anyone with Energenie MiHome kit, this is a nice little addition to the system. Connect it to your electric meter and it monitors, very much in the same way as a smart meter, your power useage and reports it to the MiHome app on your phone or the webpage. Easy to install, you just attach the supplied clamp around one of your meter tails (feed wires) - the unit itself is battery powered.
Normally around £40, I picked one up before Christmas for £20 from CPC and this is the best price I've seen since. No idea on stock levels for delivery or local pickup as the Screwfix site is running like a dead dog unfortunately.
Here's the link to the page on the Energenie websitehttps://energenie4u.co.uk/catalogue/product/MIHO006