Suraielec Watt Meter, Plug-in Socket Power Meter, 90V-250V Wide Range, Backlit Large Display, Auto Cost Calculator, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electricity Usage Monitor

Got this for a few reasons and let me say it works better than I expected. Its very easy to use and easy to read. It has a back light that makes it easy to see when its in a dark space. It has some great uses, definitely good to have.

This device works very well, with display showing Amperage, Voltage, or Watts. Only thing I didn't like, my receptacles are upside down (ground on top) as is currently advocated by the NEC, and the device has to be "upside down" to plug into my receptacles. I made a very short extension cord that allows me to turn the device "right-side" up after plugging into my receptacles. With that small modification, I'd give a 5-star review to this device, and would purchase again.

This power meter does what it needs to do and seems accurate enough for home appliances. One quirk I noticed with the cumulative runtime counter is that it will not increment when no power is actively being drawn by the plugged in device. For example, I was measuring how much power our kitchen water boiler uses over the course of the day, and was puzzled when the meter only read say 8 hours cumulative time when I know that I reset it over 12 hours earlier, before realizing that the timer does not count when the water boiler is idling with negligible power draw. So the timer will not necessarily be accurate for devices that do not draw power continuously. The other improvement that would make this meter easier to use would be if the reset button wasn't one that required a pin to reset. The meter comes with one of those little SIM card eject pins, but it's a bit too sharp for the rubber reset button, and a thicker plastic pin would be easier to use, or have a raised button that can be reset by hand. It's a balance between convenient reset vs preventing accidental resets, but there are other ways to reduce accidental resets without requiring the pin (eg. put the reset button on the side).

This one has the best information on each screen IMO to reduce how often you have to change screens. That is why I bought this one. However, it does not fit into either of the 2 styles of wall outlets I have in my house because the ground pin is too long. In order to use this power meter, I have to plug a multi-plug into the wall and then plug this power meter into the multi-plug. It's possible my wall outlets don't have deep enough ground sockets, but everything else fits in my wall outlets without a problem. One annoying part of the device (assuming it fits your outlet) is the reset button. You have to use a small tool (included) or a paper clip to push the reset button, and you'll want to reset it each time you use it unless you have a reason to keep old data. There is an internal battery that keeps old data for whatever reason. I can't think of a use for the battery personally. The text is difficult to read when the backlight is off. This makes the backlight necessary instead of an enhancement. I wish they would've just used a better screen and skipped the backlight. One thing to know about the backlight is that the backlight turns off automatically after 30 seconds. Whether that's good or bad is up to you. Despite the marketing claiming this supports 3680W, it only supports 16A of current. 16A*230V is 3680W, but 16A*120V=1920W in the US. Don't buy this thinking it will support 20A of current in the US (or anywhere) just because it supports high wattage. It even has the North American style of plug, so you shouldn't be plugging it into much more than 120V most likely.

Great Watt meter. I used it to calculate the wattage of many products to size a Powerstation. It does exactly what it is meant to do. I recommend this product.

Works as intended, good build quality.

Works as described and if holds up is good value. However, item appears to have been used as screen has multiple scratched and dirty.

Love being able to see how much electricity each Appliance is using

Very good watt meter, and it has the level of accuracy needed to test power stations and battery solutions. It has an internal rechargeable battery as well.

Man don't think twice. It works and I love it. Shows volts amps and watts at the same time. Plug my coffee marker in to it and was surprised to see 9 amps of draw at 119 volts. Anyway that said that is why I bought. I can now see what and how much is on one circuit with ease.

Works good! I just with there was an easier way to reset it for a new reading monthly instead of deleting everything and then inputting the KwH rates.

Amazing product and easy to use!

Easy to setup and simple to use