Review on 🔌 Power Meter Plug Upgraded with LCD Display, Improved Night Vision, Power Consumption Monitor for Energy Voltage Amps Electricity Usage, Overload Protection, 7 Energy Saving Display Modes, Watt Meter by Brian Whitmore

What a handy little tool. It does what it says, that is, it measures power, volts, amps. Allows you to easily calculate how much a device will cost you over time. You only need an extension cord or a small pigtail cable as this thing plugs right into the back of the device, which doesn't always work depending on the setup tested. The 3 pin extension does the trick. The display has white numbers that I think should be black, and it doesn't always remember the exact numbers that show up after you turn it off. It needs to be saved to memory every X seconds or minutes, so just make a note of the number before you unplug it. But it measures current in milliamps, which is better than a few meters, and you can't beat the price.