Wattson energy monitor system £99.95

The Wattson can show you how much energy your home is using at any given time, in Watts, £s or even in colour-changing light.
It receives its information from a transmitter attached to your electricity meter or fuse box. Wattson is fully portable and can be put anywhere you like in your home.
The idea is, if you can see how much electricity you are using, it'll help you use less - which can save you up to 20% of your electricity bill!
Wattson is also capable of measuring microgenerated electricity supplies such as Solar Cells or Wind Turbines, providing a greater understanding of net energy use.

• Prominent LED digital display shows electricity usage, easily readable in all light conditions.
• Portable wireless unit which allows instant reading of electricity use anywhere in the home within approx 30m of transmitter
• Easy to install power sensor, no electrician normally required to clip the sensor to cables from your electricity meter.
• Electricity use information stored within wattson’s internal memory, providing a detailed history of energy use
• Shows daily, weekly, monthly and yearly views of energy use.
• Low power mode to extend display battery life.
• Shows how much each electrical appliance uses when you switch it on or off
• Made in the UK
• UK mains 9V dc power charger/converter supplied.
• Sensor powered by 4 AA batteries (supplied)

Watton works with any type of UK domestic electricity meter (240V, 415V, single or 3 phase)

Dimensions: 170W x 104D x 56H (in mm)

How does it work?

Wattson measures the total amount of electricity being used in your home at any given time, and shows this value on an easy-to-read display.
A home's electrical system is made up of several circuits, such as ring mains, lighting circuit, cooker circuit etc. These circuits are all connected together at the main electricity entry point to your home, through the meter and the fuse box. This is where the sensor clip measures the power entering your home.
The sensor clip is connected to the transmitter which sends the data wirelessly to the Wattson display. The display is portable, so can be located anywhere in your home (up to 100 meters away through air, or 30 meters through walls).

Electricity use information is stored within wattson’s internal memory, providing a detailed history of energy use and the data can be viewed graphically using Wattson’s own personal data sleuth program.