YOUTHINK Electricity Usage Monitor, Power Meter Plug Home Energy Consumption Analyzer with Digital LCD Display Overload Protection Watt Volt Amps Wattage KWH

Product works perfectly and as advertised. I compared the results with a voltmeter that has a built-in AC current meter and the results were extremely similar. The differences were less than 1%.I purchased this item with the intent to use it on my desktop computer since it has a fairly high end CPU and GPU along with multiple monitors, so that I could see how big of an impact my computer system is having on my electric bill. Once you know what the electric rate charge is for your location per kilowatt-hour, you can enter that information in to the meter and it will automatically calculate in dollars and cents how much it costs.You can measure the following with this meter in real time.VoltageCurrentWattsAccumulated powerCost in dollars and centsIt has three lines of data.The Top Line is time. It's the accumulated time that power has been flowing through the meter or how long a device has been plugged into the meter and that meter has been plugged into the wall.The middle line is power. It will either display the rate of power that's being consumed in Watts or kilowatt-hours and can also display the total accumulated power consumed.The bottom line is accumulated cost. You enter in the amount your power company charges per a kilowatt hour and then it calculates the cost based on that rate and the power consumption.

Huge issue reading the screen!When I go to read the display when it is light up it only is readable from a certain angle. The is more downwards looking up. If you look at it dead ahead or a little bit above you cannot read anything.This sucks because I have it level with my computer on my desk and I am unable to even read the measurements without the display being able to be seen. I have to bend down to read it on my desk.Would recommend one with a better display which does not go invisible at a slight angle.The pictures which I provided shows different anglesFirst looking up at it from a lower areaSeconds is looking straight on at itand Third is looking slightly above it!

Bought to replace my old KillaWatt meter. This one is terrible considering the price difference. You would think a company spending thousands if not millions to produce a gadget like this would spend the chump change it takes to produce a clearly written manual. It won't break down cost into week day or hour like my killawatt did. The cost function on a killawat is much better. Spend the extra 6 or 7 bucks and get a real killawatt.Edit 3 months after purchase: Moved from 2 stars to 1 star. Numbers on display are not visible anymore when the backlight is on. The backlight and big display is why I bought this model. Believe it or not, when I hit it with a flashlight the numbers are actually there but somehow HIDDEN by the backlight. Go figure. Need a flashlight to see the numbers on the display when the backlight is on. Read the other low feedback. This is a common problem.UPDATE: When trying to get max watts on several appliances like refrigerator, instant-pot, rice cooker, etc. ( Things that typically run on circuits wired with 12 gauge wire like kitchens/garage ) ....it says MAX WATTS: 9999. Yeah thanks. That number is useless. That function simply doesn't work on appliances that have a high initial draw, which is what I bought it to measure. Booo.

Like many others, my P3 P4400 Kill A Watt electricity usage meter started showing high voltage after plugged in for about a week. So wanted to have a try on this one. The large screen and backlight help to read easier. The viewing angle is around 110 degree, I guess. Not too bad, but can be improved. It’s able to check voltage, current, frequency, wattage, power factor, cost, and so on. I measure power and power consumption often so that I’m only concerned about these two items. I tested it by my low power led light. It read 0.5W while the defective Kill-A-Watt read 0.8W. I knew the correct value should be 0.4~0.5W, so it seems to work. Also I found it could record the minimum and maximum wattage in the process of measurement. Such function will be really useful for me. I usually check devices under 100W. This meter should work for me, I think. Give it five stars for now.

Excellent energy meter, expanded functionality and intuitive use. Standard energy meter, comparable to the established/trusted brands on the market. See photos. 4 items of note, three positive and one very minor complaint:1. Backlit display - great feature as I typically use it in the dark, helps to offset issue #42. Cost caculator - enter your local energy costs in kw/hr and it will automatically calculate total energy costs over a documented period. Very simple setup.3. Extremely intuitive - Instructions are thorough, though I did only opened them to take a photo. All functions (including cost calculation) were simple and intuitive in my first attempts without referencing the manual sheet.4. LCD screen (when un-lit) is only visible from roughly straight-on: This is common with LCD displays but may be an issue if your angle of view is limited by other factors. Easily legible from all angles when backlit display is on.5 stars.

I got this to monitor my PC's wattage while mining ethereum on the GPU. The theoretical wattage for my custom system is 318W. The meter shows 210-215W while mining at ~31 MH/s on an overclocked GTX 1070 (memory speed +600MHz). I don't have any other way of measuring the wattage, so I'm going with it. :-)This has nice functions like voltage, amperage, total cumulative kW/h, min & max wattage. Voltage and amperage are definitely in-line with expectations, so I'm thinking wattage is, too. You can enter your kW/h utility rate, but (only downside) it only goes to two decimals. I have a $0.113 rate, so I can only enter $0.11.

I use this product to see the exact amount of electricity cost that certain products in my house uses, so I can see where most of my electricity bill is going in my household.

Worked great for 2 weeks, never worked since!!