SURAIELEC Watt Meter, Plug-in Socket Power Meter, Auto Cost Calculator, Backlit Large Display, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electricity Usage Electrical Energy Monitor

Sure it sat unused for most of the two years but it kinda counts.Pros:Good PriceAppears to be accurateGood featuresGood functionalityHasn't started a house fireConsA few more decimal points in kWh would be nice. 99% of applications and users will never need/want to go beyond a thousandth of a kWh (aka a watt) but it would be nice regardless.Exact wattage range needs to be more clear. To me saying its wattage range is 0.0-3680w means that it can track a .5w nightlight's power draw. It cannot. Most users will not need that but if you do or you want to know consider a different meter.

I purchased this product during Christmas time to see how many Watts my Christmas lights on my house were pulling. I was fearing that I was exceeding my circuit breakers capacity to carry a load. so I purchased this product and plugged all my house lights in and using LED lights. I was floored to learn that I was only pulling 250watts of current I haven’t flipped through any of the other features that this has other than the wattage feature, I briefly scrolled through to see voltage and amperage and other things just out of curiosity, but it worked for my intended purpose. I’m looking to keep it around to see how big of loads my other electrical appliances in my house pull I was hoping to possibly see if this works for appliances to tell me what voltage they’re using when they’re not in use and turned off, but I haven’t tried that out yet.**Overall, good product that does what it says it does and it’s simple design as a place in my book

Overall I like the device. When plugged in, the display lights with any button press and remains lit for a while. I like that it shows the maximum watt draw. I wanted to know exactly that so that I could properly size an inverter to run a fridge and freezer on batteries during power outages. Each display has the cumulative time at the top. The "manual" states that this is the amount of time that the meter is connected to the power source. That is not correct, at least not on mine. It rather shows the amount of time that power is being drawn. So if this is connected to a cooler that runs intermittently, it displays the amount of time that the cooler is drawing power, not the amount of time that the meter is plugged into the outlet. So, you can't know from the displays what the overall average power use is. You can only calculate the average power consumption while the cooler is actually running, which only occurs when the compressor is on. To know the average, I have to use a different KAW meter that keeps track of total watts consumed and total time the METER is plugged in. Other than that, it works well, but it's not quite as useful as it could be. So, it's a little bit of a letdown. But it does show the maximum power draw that occurred while in use, which my other meter doesn't show. The time also shows the total amount of time that power is being draw, which my other meter also doesn't show. It would be nice if it showed both how long the meter was plugged in AND how long a powered device was actually drawing power. Then it would be just about perfect.Setting the cost is slightly tricky. In the display with only the time and cost showing (no middle field), press the "cost" button for a few seconds. You are now incost entry mode, but you must press the "function" button so that the first digit starts blinking, and then the "up" or "down" key to change the value of that digit. Then press the "function" key again for the next digit and repeat for further digits. When set, press the "cost" button to exit the cost entry mode. You are now set. It seems that the first two digits should be for whole cents and the digits to the right of the decimal for fractional cents, so it is not a dollars and cents display. If your electricity rate is 33.14 cents per kWh (like if you live in California where they have cheap renewable power), the display, once set, will read 33.14, and if your electricity costs 6.04 cents per kWh (like where I live) then the display in setup mode will read 06.04. The actual total cost of electricity consumed will be in the mode 1 screen where time, total watts and cost are displayed.

Far better than a KILL A WATTPro's:+ Illumiated display+ Retains results after unplugging+ Covers only one outlet+ Computes cost as well as power usage+ Far less expensive than a KILL A WATTCon's:+ The reset requires using a paper clip or some other sharp toolGet this meter. You won't regret it.

I purchased this mainly out of curiosity, to measure the electricity usage on my Camelon Gecko tank to gauge the feasibility of a backup power system. This has measured for 6 months and easily reported my consumption, just as described. I have no way of comparing accuracy, but the numbers seem reasonable given the wattages of my bulbs.

Great product. I would recommend that for the price you just buy two of these right now. Its really easy to use and no matter where you put it to calculate usage over the long haul you will inevitably want a second one to plug in somewhere else.