Customer Review

30 of 33 people found the following review helpful
5.0 out of 5 stars Low cost measurement of energy use in the home, 13 Oct. 2011
This review is from: Energenie Power Meter (DIY & Tools)
I had a close look at various products offered by Amazon for measuring energy usage in the home. In the end I opted for this product on the grounds of simplicity and cost. It has proved to have been an excellent choice. It has English square pin plugs so the first thing I had to do was to create extension leads with European plug and socket. This also made the device easier to position when connected to such items as fridges where the sockets are often in accessible. By a simple repeat pressing of a key on the pannel a variety of useful data is displayed. The voltage comes first with the frequency of the mains. Then one gets the current in amps, then instantaneous power drawn in watts followed by a maximum instantaneous power in watts since connecting the device. Other data follows in turn on pressing the key successively including the total energy taken since connection in kWh. There is a facility to set up two charging rates with their respective hours of application. Thus the total cost of running for example a fridge can be measured even when the cost varies with the time of day. There is also a 24 hour clock (you can set it to the English method of am and pm if you wish). I have few criticisms they are (i) the clock starts at zero again after 24 hours - it would be nice to have a date function so that long periods can be recorded without having to take a written not of the connection date and time. This is especially relevant when measuring consumption of eg washing machines and driers that are used irregularly at different times of day and at different settings and where power various dramatically during the cycles. (ii) The energy consumed in kWh is stated to one place of decimals. Thus a steady consumption - eg a computer or a TV on standby has to be inferred from reading of current, voltage and time elapsed unless left connected for over a week or more. Three places of decimals would be ideal in this situation. (iii) The instructions need to be amplified and rewritten in good English and not merely "googled" from Japanese or Chnese! They were the worst aspect of the product. Overall a first class product for the money!
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Showing 1-2 of 2 posts in this discussion
Initial post: 14 Dec 2013 14:20:08 GMT
Mr. T. White says:
V good review, specifically this is definitely what I needed to know " Thus the total cost of running for example a fridge can be measured even when the cost varies with the time of day."

The Belkin energy monitor which everyone raves about :-( does not average out the reading over a given time. So when it measures electricity usage it does so on an all or nothing basis. Which is basically useless for what I need to use it for: to measure the electricity usage of two electronic climate control heaters (which switch on and off to maintain temp), to see which one is more economical to run and whether it's even worth keeping one over the other.

This device sounds exactly like what I need. And given your review, I now trust it will average out correctly. Thank you.

In reply to an earlier post on 16 Dec 2013 16:53:44 GMT
I'm very pleased you found the detail helpful. Often there is insufficient material to make an informed choice when choosing an electronic device on line. Donne Marshall
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