efergy e2 - wireless power metering with energy usage logging capability built-in

The efergy e2 is a simple to install, low cost way of monitoring electrical energy usage with historical logging capability. Use it to monitor electrical energy usage in either an industrial, commercial or domestic application and understand your usage patterns.

It uses a wireless transmitter to monitor the current being drawn and transmits this information to the compact display unit where instant and total kW usage can be viewed, along with cost, and the projected CO² footprint. The e2 combines this display function with a data-logging capability and FREE energy management software.

The elink software enables you to download your energy usage profile and gain a greater understanding of energy consumption. Its graphical approach features estimated future usage and demand management functions providing a more sophisticated means to analyse energy consumption.





The eLink Software will:

  • Use the data from your 'efergy e2' wireless monitor to produce graphs and demand curves for your energy consumption.
  • Help compare different tariffs that could reduce energy costs
  • Discover the advantages of shifting consumption to lower tariff rate periods
  • Help justify energy saving plans





  • efergy e2 Features

  • Wireless transmission (433.52Mhz) with a typical range of 40-70m
  • Measuring current 50mA – 95A
  • Three phase operation possible with the addition of 2 x RS 690-3867 additional CTs
  • 64K internal memory (sufficient for 12 months+ of data)
  • USB download connection
  • Powered by 3xAAA batteries – optional power adaptor (RS 666-7539)






  • Stock No.DescriptionMore info
    690-3863 efergy e2 wireless power meter with logging feature More info
    690-3867 Additional e2 current transformer (two required for 3 phase operation) More info
    666-7539 DC power adaptor for Efergy More info