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Owl CM119 CM 119 Energy Saving Wireless Power Electricity Smart Monitor Meter Eco Friendly

by Owl

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Product details

  • Boxed-product Weight: 499 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
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  • Manufacturer reference: 5060163710517
  • ASIN: B002C76WTW
  • Date first available at Amazon.co.uk: 5 Jun 2009
  • Average Customer Review: 4.1 out of 5 stars  See all reviews (30 customer reviews)
  • Amazon Bestsellers Rank: 43,566 in Electronics (See Top 100 in Electronics)

Product Description

It's easier to cut your electricity bills if you know how much you're using. The OWL wireless electricity Monitor can help you reduce your electricity use and your carbon footprint by showing you how much electricity you are using, as you use it. Simple to install, OWL easily connects to your electrical supply without needing an electrician.

Customer Questions & Answers

Customer Reviews

4.1 out of 5 stars

Most Helpful Customer Reviews

147 of 150 people found the following review helpful By a reader on 26 Jun 2009
An absolutely fantastic device that will certainly save you money. I actually ordered the old one (from an amazon reseller) but got this, the new version.

Set up is easy - just clip the plastic detector round the main fusebox wire (there's no wiring to be done) and you're immediately told how much electricity you're using. You can also enter how much you're electicity provider charges you and it tells you how much you're spending at that moment (that's the frightening part) and how much you've spent in the last month / week / day etc.

I'd recommend this rather than just turning everything off as the results are suprising. Some electical items have virtually no effect either on standby or when they're being used. Others (fridges, extractor fans, halogen lights, gas central heating!?!?) have a huge effect.

These really should be fitted in all new homes!
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19 of 19 people found the following review helpful By Baldy123 on 14 Nov 2009
Verified Purchase
If the government is serious about reducing energy usage in the home, then they should provide one of these monitors for every house.

The only drawback is that you become a little obsessed with how much energy your appliances are sucking out of your bank account, and you are continually going around the house turning things off. You know straight away if the kids have left the lights on in their bedroom, and how much it costs to have a shower.

It's so easy to install - just fit the sensor clip around one of the cables going into your consumer unit, turn on the sender box and the remote monitor, and you're ready to find out how expensive your tumble drier and washing machine are, and more importantly for me start turning lights off (halogens are costing me a fortune in electricity).

I just wanted to know how many kilowatts we're using in real time and how many units of electricity (kilowatts/hour) it's costing us, which this unit does fantastically. You soon find out what appliances are costing you the most money.

Buy one, become obsessed and save some money.
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43 of 44 people found the following review helpful By J. R. Brooks on 2 Nov 2009
Verified Purchase
The device is easy to fit - the device clipped easily around the main cable. However when I first connected up it gave strange readings and this seemed to be because the detector was too close to the other cable. I did take a picture but the photo is still on the camera - can add it if anyone interested.
It is not particularly accurate (which is stated in the technical specification) so that when you have all the high energy consuming items stopped then it is probably only capable of detecting energy changes of about 50 watts.
The screen is rather cluttered.
What did I discover?
1. The 800W microwave uses 1500W
2. The "new" low energy bulbs really do consume much less energy
3. Generally old equipment is more inefficient.
4. The new TVs use little electricity when on standby
5. We REALLY do not need a fridge, a freezer and a fridge-freezer
6. Putting on the kettle, toaster, tumble drier and washing machine is bad for your health

I have used it as "research" tool - to find out what we should be doing.
I am going to move it to my daughter's house - it should save her a fortune.
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28 of 29 people found the following review helpful By zippy TOP 1000 REVIEWER on 10 Oct 2009
Verified Purchase
Truly fantastic. This HAS saved me money, simply because it does what it says, keeps an accurate eye on my power usage and costs at any time of the day or night. It has already told me that my fridge is dying, which was confirmed when I bought a fridge thermometer. I knew because the fridge was only able to keep cool at the highest power setting, and that showed clearly by power use with this meter. It almost instantly responds when anything switches itself on or off. Best feature is that this meter keeps record of accumulated power cost, so there's no chance of a nasty surprise when the power bill comes because you will know what the bill will be (excluding VAT and standing charge). I just love having this on my wall as it gives me peace of mind. Don't put it off, buy one today!
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7 of 7 people found the following review helpful By Bob TOP 50 REVIEWERVINE VOICE on 22 Mar 2010
Although I liked this and found it useful I have two main comments:-
1/ keep the instruction leaflet handy as although it is easy to set up it is not intuitive and if the tariffs change you will need to reset it likewise when the batteries run down not all of the settings are retained and again they need to be reset.
2/ more important is the fact that it is not very sensitive I wanted to see the results of taking things on and off standby and see what effect various power supplies had. Small changes do not register and although it does measure overall consumption and will give the price per month which I find useful as I pay by standing order and can now control how much I pay to make the payment accurate rather than rely on the suppliers estimates which are usually much higher than the actual usage.
I would have liked to use it to fine tune the my consumption I can not tell for instance how much I would save by turning the TV off rather than putting it on standby.
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61 of 65 people found the following review helpful By Lindosland on 19 Sep 2010
The Owl claims to measure Energy use and Power (rate of energy use). It does not, it measures current and then makes a false assumption that all your devices are, in effect, electric fires or old fashioned light bulbs - that they are what are called 'resistive' loads, with a 'power factor' of one. Don't worry about these terms if you don't understand them. Many people have agreed with my earlier posting (below) but many have asked for a simpler explanation, hence this foreword. Briefly, the problem is with fridges and freezers. They have a power factor of about 0.3, which means that they take a lot of power for part of the mains cycle and then give over two thirds of it back to the grid on the other part. Your electricity meter knows about this and charges you correctly. The Owl ignores what goes back and hence gives you an estimated cost that is over three times too big!! Not very important you may say, because fridges and freezers don't use a lot; but in many homes they use a very significant proportion of the total, because they are permanently on. Your cooker and shower use much more, but only for minutes at a time. In terms of its claims, the Owl is without doubt in breech of the trade descriptions act and advertising standards. It is perfectly possible to make a proper one, and I hope they will. Too many lies are told by marketing men, and as an expert in Electronics I try hard to counter them. Amazon reviews are an excellent way to do this and I hope this is appreciated ...........

.... former post:
Despite reading in Watts and Watt-hours and claiming to measure power consumption and energy, this unit actually measures only V-A (Volt-amps).
Read more ›
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