Volt Energy Meter M3

Sixteen clamp sensors on the circuits in your consumer unit, reporting to a DIN-rail module that keeps the data in the house. Nothing is cut, nothing is rewired: the clamps close around the existing cables. Once it has watched for a fortnight it can name most of the loads on its own, and the dashboard shows what is running now, what ran last night, and which appliance quietly became the biggest line on the bill.