Know How Much Electricity Your Appliances Use

The Kill-a-Watt is available from the REUK.co.uk shop, for £19.99 plus £1.95 UK mainland postage. You plug it into a mains socket, then plug an appliance into it, turn it on and it tells you the voltage, current and power consumption, plus other measurements.

Use it to see how much that old fridge of yours is consuming, how much your PC/monitor uses when in standby, or what your broadband router draws.

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