iPhone XR Screen Protector,Premium Tempered Glass [High Definition] [Ultra Thin] [6.1"], 3Pack

This energy monitor is good quality, inexpensive, it does what is says and it's pretty accurate. It gives you voltage, frequency, current (A), power (W) and cumulative energy used (kWh). It is often slated by those who think it should retain its reading after unplugging. Well it doesn't and I wouldn't expect it to as it doesn't have a battery. You need to look at it and note the reading before you unplug it. The one downside to it not retaining it's reading is that if you're trying to get a long term view of energy used by an appliance over a few weeks (e.g. washing machine) and there's a power cut at some stage during that period, it resets itself to zero. If that's what you're trying to do it might be better to get a more expensive one.

This energy and power monitor does what it says and does it pretty well. I tried two different plug-in meters and this one was by far the best. I didn't bother with any of the devices that are attached to the live cable next to the house's main electricity meter, as these can't measure actual power consumed (i.e. what you're billed for). Only plug-in meters can give you an accurate measure of this, though of course you can't use them to directly measure e.g. showers or cookers as they don't have a plug (with a little effort though, you can use the meter to work out how much energy one revolution of your normal electricity meter corresponds to, which you can then use to measure consumption for items like showers that don't have a plug). The meter is able to measure low currents and low powers fairly well, so low-consumption appliances or devices on standby can be measured accurately (unlike the other meter I tried: Power & Energy Monitor by Brennenstuhl ). It measures current (A), actual power (W), apparent power (W), power factor, total energy (kWh) and usage time, and you can view any of these values within one or two button presses (some buttons toggle between two measures). The usage time measured doesn't depend on the current drawn by the appliance you're measuring, so for fridges/freezers that switch on and off, you see the total usage time which makes it easy to work out typical (average) power consumed. The meter doesn't have batteries, so you have to read the measurements while it's plugged in. This is rarely a big problem, but occasionally you might have to get under a desk to get to the plug socket and the meter (you can always use an extension lead to help with this). All the measurements are updated about every second, so you can see how power usage varies for things like TVs and PCs. Power values are shown to the nearest Watt, and the meter seems to give reliable readings at the bottom end of the range (1-5W). You can even look at apparent power and the power factor to get an estimated value of actual power that's not rounded up (e.g. apparent power of 3W, power factor 0.5 means actual power is 1.5). Measuring a low-energy light bulb rated at 11W gave an actual power reading of 11W, so it seems to give accurate readings. After measuring all appliances in the house, estimating power usage for the cooker/shower and estimating the amount of time each item is used on average, I got a total figure that matched well with our actual average daily usage. It was then easy to see how energy could be saved by using some appliances more carefully and by cutting down on standby. Overall: a useful tool for measuring the power used by household appliances (when active or on standby), easy to use, accurate measurements of actual power consumed (including low currents/powers). Ideal for identifying the most energy-greedy appliances, and for working out where energy savings can be made.

I have only used this a few times so far, but I just set it to kilowatt hours and it gave me a measurement. I prefer to take note of the time I plugged it in and made sure I unplugged it 12 or 24 hours later to get a good reading for working out the cost. I find that easier than having to set timers that are on more expensive models. It seems great. Nice to settle those nagging wonderings of how much things cost to run. Of course it can only be used with things that have a plug on, and I advise using it with a short extension lead so that it can be picked up to read the display rather than trying to crawl behind the furniture to get a reading as when you unplug it, the data is lost I think. The compressor type dehumidifier we use to dry clothes costs 72p per 24hours of continuous use, and will compare it to my friends spinning desicant disck type to see which is best. Having said that I am a little worried about becoming obsessive! Good product.

I wanted an accurate and simple to use device, and this is it. It's proving very useful to capture information about my computer setup, as well as white goods such as the dishwasher, washing machine, etc. It's already highlighted that fact that our 15 year old fridge-freezer uses twice as much power as more recent ones, so we'll stop using it except as times such as Christmas when there are lots of visitors (we have a separate fridge and freezer also). The lack of battery/memory is a minor drawback, but I use an extension cable if the unit would otherwise be awkwardly situated for reading. A battery would be nice, but accuracy and ease of use trump that. In all this I agree with the other positive reviewers. I got mine from Ammic, who delivered within a couple of days. Nice!

OK so you're probably just like me and are thinking more green at the moment and are wondering what sort of cost each electrical device in your home uses. And, probably like me you were a little confused on which one to buy and so read all of the reviews here - of which this got some of the best so i'ts a serious consideration. Well I can tell you that this device does exactly what it's meant to do and gives some really interesting results. For example, I use a media center pc which I leave in sleep mode so that it can be easliy turned on again. Because of this device i'll now always turn it off as I just found out that it uses 60 watts of electricity even in sleep mode! Now this PC will always be turned off when not in use as I might as well leave a light on 24/7! I also found out that the toaster uses 870 watts when making toast! Luckily though when you turn it off it uses 0 watts! The item has Maplin written on it so maybe go into a shop for it if you have one nearby and the price is reasonable as it did take more than a week to arrive. When it did though it was well wrapped and in good order. SO, buy it - it's very good but don't expect next day delivery.

Good product