Mercury UK Appliance Power Meter

Plug through UK power meter that measures electricity usage and calculates the running costs of household appliances. The large easy to read display indicates current usage in Watts, Amps, Volts or KWh and also provides an indication of your electricity costs after you have entered your tariff details. The unit also incorporates overload protection and has an inbuilt rechargeable battery to save your settings and data during a power failure.