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Review title: Kill a Watt Electricity Monitor
Product review: Product works as described. Needs to have a way to stay powered once unplugged. Needs a way to calibrate it. Plugged it into an electrical motor that according to math formula on how to find wattage should have been a little over 400. Monitor read 158. Plugged it into a lamp with 60 watt bulb and it read 59.7. Little confused.
