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Efergy Elite Wireless Electricity Energy Monitor / Power Meter

by Efergy
3.9 out of 5 stars  See all reviews (70 customer reviews)
Price: 37.45 & FREE Delivery in the UK. Details
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Sold by Eco Power Shop and Fulfilled by Amazon. Gift-wrap available.
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  • Instantly measures & records electric consumption
  • Innovative memory function
  • Variable Voltage 110 - 250
  • Displays Energy Used (Watts), Value if energy used (,$,Euro)
  • Multi Tarriff
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Frequently Bought Together

Efergy Elite Wireless Electricity Energy Monitor / Power Meter + Efergy Jackplug CT Standard Sensor for Elite, e2 & e2 (2.0)
Price For Both: 44.50

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Product Information

Technical Details
Part Number 5060263022770
Item Weight440 g
Product Dimensions20.6 x 20 x 5.2 cm
Item model numberElite N16354
Power SourceBattery-Powered
Item Package Quantity1
  
Additional Information
ASINB001Q1G4WK
Best Sellers Rank 587 in DIY & Tools (See top 100)
Shipping Weight499 g
Delivery Destinations:Visit the Delivery Destinations Help page to see where this item can be delivered.
Date First Available14 Sep 2007
  
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Product Description

The elite wireless energy monitor updates every 6 seconds so you can instantly see the impact of turning a light on or off, boiling the kettle or using your tumble dryer. It has an innovative memory function that allows you to see how much you have used today, yesterday and in the last week or month. The elite monitor also displays your daily average so you can see when you are using more electricity than normal and see how your average usage reduces as you change the way you do things.

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews
34 of 34 people found the following review helpful
5.0 out of 5 stars Reliable and informative 13 Jan 2013
Verified Purchase
Warning: I and numerous others have found this extremely addictive. As a result please be aware that you too could find yourself in a dark, cold house with all the plugs out wondering where the last 0.2kWh is coming from!

With energy prices rising and our increasing impact on the environment, it really is the responsibility of everyone to reduce their usage and save themselves a few quid at the same time.

This wireless energy monitor tells you exactly what you're using live and accurately and will easily pay for itself.
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222 of 227 people found the following review helpful
5.0 out of 5 stars Useful/interesting 23 Jun 2008
By Tom
Nice product and well thought out. Quite a lot of options so worth
reading the manual. The memory function is very useful and puts
well ahead of other devices that do the same thing for the same price.

I notice comments on accuracy and precision of this device. This
device measures total load which will be higher than the house meter
reading for motors and transformers. The house meter only reads
resistive load only - and this is what you pay for. All the
electrical energy used must be generated though and the electricity
supplier just guesses the discrepancy. Since this error is a function
of how it measures the electricity used then all these type of meters
will show high readings for things with low power factor.

The accuracy of the device is dependent on the position of the sensor
placed on the live cable and can be influenced by the return/neutral
cable if this is very close. This can result in high readings. Try
to fix it to the live cable as far away as possible from the return/neutral
- but please do not move/bend cables. You can see electrical loads
as low as 1 or 2 watts being turned on/off (clock/mobile phone charger)
but don't expect to identify the exact load - just that it is small.

The precision is reasonable considering the cost of the device - I
am getting around 5% error from what I expect with a 2-3 inch separation
between sensor and neutral cable. So kettle which is actually
2.080kW registers as 2.0kW +/- 0.1kW

It returns the instantaneous power usage (every 5 seconds), and values
of energy use for day/week/year.
Read more ›
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19 of 19 people found the following review helpful
4.0 out of 5 stars Save on electricity 9 Feb 2011
By Peter
The Efergy electricity monitor is easy to set up (even for me, a Senior Citizen). And it works! I now know which of my many gadgets swallows electricity. And I've learned to switch things off when not in use (even standby) I'm definitely saving money. Good value, neat, clear. Recommended.
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62 of 65 people found the following review helpful
The unit is quite easy to install with the very clear instructions provided.

It is a noticeable improvement on the original model with better appearance and historical information logging. It also uses higher capacity AA rather than AAA size batteries;6 in total.

The unit is illuminated for "night time" use but strangely you have no control over when the backlight should be enabled.

Their web site [...] provides support, electronic versions of user guides, etc.

In use, one is typically enthusiastic for the first few days looking at "live" readings but later on one tends to let it collect data unattended with occasional inspections.

I would recommend comparing it with your electricity meter readings to begin with to make sure your cumulative readings match reasonably well. If necessary you can tweak the recorded values by adjusting the nominal mains voltage as part of the srtup process.

Also using reasonable quality rechargeable batteries would be better than disposable ones.
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62 of 65 people found the following review helpful
5.0 out of 5 stars Great Product 14 Mar 2008
Simplicity to get up and running - only took a few minutes.

Forced myself to read through the instructions, which was time well spent. Found the meter easy to set-up - most of the defaults were fine for what we want. Hasn't saved us a fortune, but has made us aware of just how much electricity certain appliances use. The memory function is a real strong point of this gadget too. Most other meters don't seem to let you look back at usage over recent days. This one does and it is a really useful feature.

Not sure how long it will take to pay-back, but still very pleased with it.
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43 of 45 people found the following review helpful
2.0 out of 5 stars Take readings with a bucket of salt 24 Nov 2009
I got a couple of these devices, one for work, and one for home.

At work, it was reading 1.3kW. I have a plug-in power meter (which measures amps AND volts, unlike the Efergy which just measures amps) in our server room which was measuring 670W or 780VA. This feeds into a UPS which was reading a load of 3A (so about 750VA - similar to the plugin-in meter). When I unplugged the UPS supply, the Efergy dropped to about 1kW - so it only measured a drop of 300W, not the 600-700W it should have done. That's a big difference, relatively speaking.

FWIW - our annual electricity bill suggests we use an average of about 2kW all the time (which is why we are seeing if we can monitor it better), so during the daytime, it looks like the Efergy was reading quite low - maybe the 1kW was right, and the 1.3kW was wrong - you can't easily tell.

Then I tried the other Efergy which was destined for home, which consistently gave readings 200 watts below the first one!

Just to add even more fun, we had great confusion because when we turned OFF some fluorescent lights (about 80W worth), the reading went UP (by 300W, not an insignificant amount!), and when we turned them ON, the reading went DOWN - so according to that we should leave the lights on all the time! (As far as I can think, this may be due to capacitive and inductive loads cancelling out when the lights are on - however it makes the devices hard to use for what they're intended for).

So, while these things are easy to install, and can give a rough idea of power usage, don't take them too seriously, and be especially careful if you have fluorescent lights or lots of computers.

We may need to look around for a smart meter which can take power factors into consideration, even though it will need an electrician to wire it in.
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Most Recent Customer Reviews
5.0 out of 5 stars Worth buying
Great gadget would highly recommend this item to anyone who wants to cut down their utility bills.Can be
addictive to start with but very usefull to monitor and compare eg... Read more
Published 23 days ago by ChrisK
5.0 out of 5 stars spot on
I really got an eye opener as too how much electricity some appliances use ..so lets hope I can cut doon a bit on my usage ..delivered on time as well ..
Published 1 month ago by Alister Henderson
3.0 out of 5 stars handy instrument
useful for checking main meter and trimming electricity usage. could be a bit more user friendly when it comes to showing direct costs.
Published 1 month ago by les wells
5.0 out of 5 stars very good device
very good i like it and recommend it to everyone
it saves you energy and let you know of every device you have how much it is consuming
Published 1 month ago by Mostafa
1.0 out of 5 stars Not tested.
Never had the opportunity to try the Efergy Elite wireless monitor, as the order never arrived! Will be thinking hard before maketplace again.
Published 2 months ago by N. Evans
2.0 out of 5 stars Worked for a while then stopped
Product received on time. Installed as per instructions. Worked for 30 mins then stopped. Reinstalled with new batteries with same result. Read more
Published 2 months ago by Brian Fenn
5.0 out of 5 stars Great bit of kit
Great item delivered in good time and at a reasonable price powered it up connected device around mains cable and away it went I can now identify when we are using a lot of power
Published 2 months ago by Lindsay
2.0 out of 5 stars Efergy Elite Wireless Energy/Power meter
poor design of battery holder,any movement at all and batteries move and the device fails.
Bought in sept 2013 but is has since failed completely. Read more
Published 2 months ago by Rev. Terence Dobson
4.0 out of 5 stars works OK
I"ve got this working now but it might need a bit of effort. You have to put the sensor round the mains inlet cable as it goes in to your fuse box ( it just clips on so it's... Read more
Published 2 months ago by DC
5.0 out of 5 stars Efergy Elite Wireless Electricity Energy Monitor / Power Meter
This Efergy Elite Wireless Electricity Energy Monitor / Power Meter arrived today and I soon got it working and it should help me to cut my usage of electricity and save some money
Published 2 months ago by Jeremy Kn ight
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