Monitor & calculate the cost of running your home or office appliances Can be installed in minutes with no expert knowledge or assistance Simply attach the sensor & transmitter to your electricity meter Easy to use & portable display unit instantly tells you how much energy you are using Start saving money & the environment immediately Smart meters which measure your energy consumption are a great way of keeping track of how much energy youre using. When you can actually see how much carbon youre wasting every time you switch on the TV or make a cup of coffee it will make you think twice. The Home CO2 meter is a portable monitor you can take from room to room to see at a glance which appliances are using the most electricity. Each year the average UK household spends 36 running a tumble dryer 27 running a washing machine 70 on lighting 40 operating a dishwasher 30 powering a basic computer 60 running a fridge-freezer In the UK each year stereos on standby cost 290m & produce 1.6m tons of CO2 & TVs on standby cost 88m & produce 480000 tons of CO2. For every pound saved on an electricity bill youre also saving 6kg of carbon dioxide which is what a coal-fired generating plant would emit while making this much power. The energy meter does not require you to carry out any electrical wiring. The clip fits on the external cable which has a live supply running through. If you have any doubt about any connection or how to install it consult a qualified electrician.