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15A Plug In Energy Saving Monitor

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Quoting product code: L61AQ


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About this product


  • Measures voltage (V), amps (A), watts (W), volt-amps (VA), hertz (Hz) and power factor (PF)
  • Great for seeing how much power your appliances are consuming
  • Maximum current: 15A / maximum power: 3750 VA

Product overview

• Measures voltage (V), amps (A), watts (W), volt-amps (VA), hertz (Hz) and power factor (PF)
• Great for seeing how much power your appliances are consuming
• Maximum current: 15A / maximum power: 3750 VA
• Large, clear LCD screen

Rated 5 out of 5 by from Bought one of these from Maplin a few years ago (3-5?). Has been very useful. Appeared to be accurate, e.g. with 100 watt old-style lamp and 2.5KW kettle, and with nothing plugged in registered 0 watts. However now, after not using for a few months the display is only just visible and it registers 11 watts with nothing plugged in. Maybe an internal battery is running out, or it's just anno domini. Accurate readings at low wattages are important these days to measure stand-by power and the like. Will probably buy another. Usually have to press Watt button several times or hold it in to get watts displayed. Other outputs less useful to me.
Date published: 2014-11-11
Rated 4 out of 5 by from Measures everything you want about power consumption as well as the nature of the load and the voltage and frequency of the mains. Two small things would improve it. When disconnected from the mains (eg power outage or accidental switch off) it loses its cumulative power usage. It would be helpful if there an inbuilt light so that the readings can be seen in the awkward places where some sockets are located.
Date published: 2014-11-11
Rated 5 out of 5 by from Useful Device I bought 2 of these to try and track down why electricity bills were forever increasing. I ended up installing them into the adult children's bedrooms as a local electricity meter and told them they would have to pay the going rate for the electricity they use. My annual usage dropped by 12%. The culpret was disregard of switching TV and games consoles off when not in use, also electric fans left on day and night in the summer ... Not a problem any more!
Date published: 2014-10-23
Rated 5 out of 5 by from This proved very useful after the storms just before Christmas. We had a TV and a burglar alarm system blow input mains fuses and an induction hob that showed a code saying that the voltage was out of range. Plugging in this monitor showed that that voltage was varying between 258 and 298 volts (yes 298 volts). Vague memories of past electronic engineering degree and a search on Google said this was probably a neutral fault in the three phase overhead supply. At third attempt, SSE were persuaded of this and the fault fixed.
Date published: 2014-11-11
Rated 5 out of 5 by from I'm finding this very useful as a tool to show my children just how much electricity they waste when they leave things on when not in use. I tell them that the more we save on bills, the more we can spend on them - and it's really working!
Date published: 2014-11-11
Rated 5 out of 5 by from Very useful device. I have used it to measure standby power used by TV/Sky box, power consumption on my home server and even at work, where I wanted to measure current draw on one of the rigs. You may not want to use it for accurate measurements but to know if you are well below the 13A mark, this will do the job.
Date published: 2014-11-11
Rated 5 out of 5 by from Had this for a number of months now. Very simple to clip transmitter onto mains cable at meter and to set up. Gives full details of total energy use in my home and allows me to check past usage. Keeps a history log of energy use and costs and makes you think hard about leaving appliances on standby, especially when you see what it is costing you. Just buy one, you wont be dissapointed.
Date published: 2014-11-11
Rated 5 out of 5 by from A very useful item, it shows you the exact use you put on your home gadgets and equipment.
Date published: 2014-11-11
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Function Range Accuracy
Typical Max
RMS Voltage 180-250V rms 0.002 0.01
RMS Current 0-15.00A rms 0.003 0.01
Active Power 0-3750W 0.005 0.02
Line Frequency 47.0-63.0 Hz 0.1Hz 0.02
Power Factor 0.00-1.00 0.01 0.03
Power Consumption 20W max

I simply want to test the voltage being supplied. Can I simply plug this unit in ti measure the voltage, without plugging an appliance into the unit? Thanks!

Asked by: CrazyStu
Yes, the default display right after plugging is the line voltage. It updates every second or so.
Answered by: vsnn
Date published: 2017-11-21

Does it tell you how much power you are using per day or just 1 generic result? 

Asked by: Danny
sorry, this only shows a live feed, not historical data of what has been used ped day.
Answered by: Billy
Date published: 2017-08-16

Do you have a similar product. Not the 13 amp one.

Asked by: neil
This service is for frequently asked questions and does not allow two way communication, In order for us to best assist you with your technical issue please contact us on the details below: 0333 400 9500 or email
Answered by: Billy
Date published: 2016-08-15

I'm looking for a unit that can display maximum demand in watts or amps over a given time period I.e the peak was 11.6A? Rather than s combined use age. Will this unit do this? Thanks.

Asked by: Dickyc1981
Yes this will work fine in your intended application.
Answered by: Darren
Date published: 2016-03-02

Hi, do you deliver this product to Dubai, UAE? Total cost?

Asked by: Samuel
We don't deliver to Dubai unfortunately.
Answered by: Brad
Date published: 2015-12-30

does this saving to the reading so I can see the voltage drops over a week long period

Asked by: tomm
I am sorry but the item in question does not support use in your intended application.
Answered by: Russell
Date published: 2015-08-28

Can this be plugged into a surge protector? Want to monitor PC usage.

Asked by: jojo
Yes it can be used with a surge protector to monitor the PC connected to that socket.
Answered by: PaulaC
Date published: 2015-07-17

Does this item give the option to input the current cost per Kwh or at lease record the amount of Kwh Used?

Asked by: Will
No sorry this only shows a live feed not historical data.
Answered by: Russell
Date published: 2015-07-17
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