Power Monitor, Power Meter Plug Electricity Usage Monitor with Digital LCD Display Energy Consumption Analyzer for Calculating Energy Cost Volt Watts Amps

I bought this despite the poor reviews from a couple of other customers. Sometimes things are intuitive, other times you need to read manual. With a device that has so many functions but only 4 buttons it's probably going to need a quick manual reference to get started with anything other than the simple options.One of the functions is how much things are costing to run. The meter allows you to enter how much a KWh costs from your suppliers. However the user manual (it's tiny, so more of a quick start sheet) says hold the cost button for 3 seconds then use the function button to select cost, then the up/down to set it. However (as per other reviews) no matter how hard I tried this did NOT work. After a little think and a cup of tea I went back and tried again, same thing, no way to change the cost. THEN I pushed the tiny reset button for 3 seconds to make sure the unit had a good reset since it had sat in the box since the factory. Once I'd reset it properly ALL the functions operate as per the user manual.So, for all the people struggling, try resetting the device and it will probably work perfectly.The 3 positives for this meter are:1) The large back light display2) It has both Hi and Low functions as well as constant read-out, so you can tell the maximum and minimum current your device has ever drawn, not just the present and total.3) It can measure power used in both directions. Most people only need to measure from the socket to the device but if you're using something like a solar grid tie inverter you may want to measure how much current you are feeding in to the mains and this device does it (which combined with the max/min/total functions is v.good).I will be buying at least one more.

The media could not be loaded. Be careful with the overload protection this item will not shut off if over loaded it will display overload on the screen and make a noise but thats it..It will not shut off and it is not a surge protector so bare this in mind.Ok firstly the screen on this is complete rubbish...(See my attached vid)You have to be looking at the screen at a ridicules angle.now considering most people will have this plugged into wall sockets that are generally down low viewing this from above you cant see anything hardly at all (see vid)The unit does have a back light that will come on when a button is pressed which is good but doesn't change the fact you cant see whats on the display unless you are exactly Level with it or looking from more of a below up angle (good luck if you have it plugged into a wall socket)So the unit seems to calculate quite acutely.I got this item for 3 main functions..To see the watts my device was usingTo see the kw/h my Device was using andTo see the cost of my device for the time used..Now by far the worst part of this item is how it displays the cost part..So here is my Example..I tested a fan on this itemThe fan i was using pulls 32 watts per hr on its lowest settingSo to keep this simple the calculations to calculate your energy are my fan is 32 watts multiply by 1 hr = 32 divided by 1000watts (1kw) = 0.032 of 1kw multiply by cost of electricity per kw for me is 15.18 this equals a cost to run my 32 watt fan for one hr of 0.48576p so £0.04p 4.8p to be more exact..This device does calculate this cost correctly as you can see in my pic but how it displays the price is quite confusing because of the decimal point.So I'm not sure does this unit only show in pence..or pounds and pence because going by the picture it is 0.48 and the instructions say it will go as high as 99.99?? 99.99 but whatIs it £99.99p or is it 99.99p ie 00.01p under £1 so i have no idea and also the instructions show that its in euro but I've no idea if that even matters as a unit rate is a unit rate.So you will probs need to set this to view kwph usage and then start calculating your cost from that if because the units way of doing it is confusing.Also good luck with the instructions they are more useful to blow your nose with than to actually explain how to use the unitThere is also no way to 0 a menu unless you completely reset the whole unit and then re enter your cost..Also rapid tables do a good energy cost calculator if you google the name.

Good little product - plugged my extension lead into it - with 2 monitors, computer and router - shows Wattage about 200w idle - damn those monitors!i7 6700k Computer alone idle was 80w - and seemed to be 80w when under stress too. Better than my old 8 core Mac which was 200w idle and 380w stressed.Easy enough to set up and insert your price per kwh - instructions could be printed better though!TIP: Press the Up or Down button to get the screen to light up.TIP 2: Be careful what you press the reset button down with - cos mine got bent in the case - had to take it apart to release it. Needs a light touch.Fear not it works a treat!

I purchased this product to help gain an understanding of how much electricity some appliances were using. Unfortunately the product turned out to not be fit for purpose.1. First of all the instructions are very badly written and not straight forward to decipher.2. I first thought that the product was working as I saw it begin to tick over in terms of time and watts consumed. But then I noticed after about 10 minutes the number of watts began to go down giving the impression that the product it is connected to was producing energy rather than consuming it.3. There are two views for power. One in terms of watts and one in terms of kw. Unless I am mistaken, 20 watts translates to 0.02 Kw however while the watts display showed 69 watts, the kw display showed 0I guess at £15 you get what you pay for