I would like to measure the amount of power used by a few of my appliances at home, mainly the total draw on some of my extension blocks. I?ve looked at a few of the plug-in power meters you can buy for £20 or so but have seen a few people saying that these are not very accurate. So what would be the best (most accurate) way of measuring? Should I look to get a clamp meter instead? I?m not looking to spend a fortune (£100 maximum) but would rather get something that is fairly accurate than waste £20 on something that isn?t.
Thanks
Gav