Wattson Home Energy Meter
- Description
- Further Info
- Delivery
- Returns
With both numbers and colours, Wattson shows you how much electricity your home is using at any given moment.
Wattson can also store up to 4 weeks of energy-use history which can be downloaded to your computer and viewed using software available for download from the Wattson website.

How Does It Work?
Information from a transmitter attached to your electricity meter or fuse box is beamed directly to your Wattson which instantly displays your current usage.
In fact, for such an ingenious device, Wattson is really easy to install and even easier to use and the instructions are completely free of techno-babble.
Wattson can show energy use in Euros, Dollars, Stirling and Yen as well as Pounds, making it a truly international product.
It can measure single and also 3 phase systems, making it suitable for large houses and even small businesses.
Display:
• Portable wireless unit which allows instant reading of electricity use anywhere in the home within approx 30m of transmitter
• Shows how much each electrical appliance uses when you switch it on or off
• Prominent LED digital display shows electricity usage in £s or Watts, easily readable in all light conditions
• Contemporary and cool design, looks great in every pad or mansion
• Coloured mood light, which breathes and pulses, changing colour when you alter how much electricity you use, cool blue for small amount of electricity being used, warning red for high energy consumption
• Change the tariff in line with your bills, currency shown in £, $ or €!
• Handily designed with recycling in mind for when you have finished with it
• Contains an internal battery pack so you can take it round your home to see who’s using what
• Low power mode to extend display battery life
• UK mains 9V dc power charger/converter supplied
• 5W average power consumption, reduced to under 1W in low power mode

Energy Use History:
• Electricity use information stored within Wattson’s internal memory, providing a detailed history of energy use
• Data viewed graphically using Holmes – Wattson’s own personal data sleuth program
• Software both PC and MAC compatible
• Daily, weekly, monthly and yearly views of energy use
• Online community of Wattson users to compare hints and tips for saving energy
Sensor Details:
• Easy to install power sensor, no electrician normally required to clip the sensor to cables from your electricity meter
• Compatible with single and three phase electrical systems, for use in homes of all sizes as well as small business premises. Three phase systems require two additional sensor clips. These are approximately £10 each but are currently unavailable from drinkstuff.com. However, if you are interested in extra clips, please contact us.
• Sensor powered by 4 AA batteries (supplied)
• Variable transmission frequency allows extension of battery life
Renewable Energy:
• Able to measure microgenerated electricity supplies such as Solar Cells or Wind Turbines, providing a greater understanding of net energy use
• Generated energy information shown on Wattson as generated energy, net consumption and total generated to date
• Both generated and consumed energy stored in Wattson’s internal memory
• All data can be viewed via Holmes – Wattson’s own personal data sleuth program
• Simple installation of extra sensor

There is no further information for this product.
| Showroom Collection | ![]() |
FREE |
| Standard Delivery | ![]() |
FREE |
| Next Day Express | ![]() |
£5.99 |
| Next Day Before Midday | ![]() |
£9.99 |
| Scottish Highlands | ![]() |
FREE |
| Scottish Islands | ![]() |
FREE |
| Northern Ireland | ![]() |
FREE |
| Isle of Wight, Isle of Man & Offshore UK | ![]() |
FREE |
| Channel Islands | ![]() |
FREE |
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Drinkstuff Returns Policy:
- 30 Day Money Back Guarantee
- Faults/Damages must be reported within 3 working days
For full terms, see our Returns Policy.
Please note:
Some products have individual returns policies. Details of these are stated on the relevant products pages.
Specifications:
12.5KW max per phase
1W resolution of display
14 segment LED digital display
RGB LED full colour ambient light
32kb non-volatile EEPROM internal memory
433Mhz transmitter / receiver, approx. 30m range
3 – 20 second refresh rate, user changeable
3 – 6 month battery life (Sensor)
Up to 3 month battery life (Display)
USB 1.0 and 2.0 compatible
USB-A to USB mini-A cable supplied
Currency changeable: £. $, €
Casings made from Polycarbonate, Polypropelene and ABS
Display: 105mm x 170mm x 55mm
Transmitter: 110mm x 84 mm x 26 mm
Software Mac and PC compatible
Pack Contains:
1x Sensor Clip
Transmitter
Wattson Display Unit
Transmitter batteries (4 x AA)
Display Charger
USB Lead
Dimensions:
Sensor Clip: L(approx.) 980mm
Transmitter: L 110mm W 85mm H 28mm
Wattson Display Unit: L 175mm W 110mm H 56mm
Plug cord length: 3000mm
USB cord length: 1750mm
Sensor clip cord length: 900mm





I'm just waiting for the first bill!"
I must admit, I use it to save me a few pennies, but to know I'm helping reduce my carbon footprint is a huge plus.
Oh, and not only does it help me save some energy, it also looks really cool!"
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