Efergy Emax 7.9″ Energy Monitor Kit – Wireless Electricity Monitor


  • Compatible with the Elite, E2 and Engage Transmitters and Sensors
  • 7.9″ high-quality colour display with touch buttons
  • See your current energy use with a colour-coded speedometer
  • Historic data today/yesterday, this/last week, this/last month
  • See this month always on and peak usage in kW
  • Set your own monthly target and the budget bar will help you keep track of costs
  • Set your own monthly target and the budget bar will help you keep track of costs
  • Use a USB Flash Drive to Download your Energy Data in .csv format
  • Peak time, high usage, low battery, and wireless signal indicator
  • Set up to 4 different tariffs, monthly budget, alerts, and multiple world currencies

Please Note: No “Sensor Clips” are included in this price. Sensor clips need to be purchased separately according to the size and quantity you require. Sensor clips can be found here: https://greenenergysolutions.co.za/product-category/energy-monitors/sensor-clips/

Please allow five business days for delivery.


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7.9″ Stylish Colour Energy Display

E-Max is the latest energy monitor from Efergy. Now is easier to keep an eye on your energy use at home than ever with a big 7.9″ display, faster performance, battery for room-to-room portability and USB-2.0 port to download your energy consumption data.

The largest energy display on the market at present

The E-Max features a 7.9-inch screen making it the largest on the market at the present time, making it very easy to use from a distance.


Colour-Coded Instant Energy Readings

The home screen shows you exactly what power you are using at that precise time and the cost of the electricity you have used so far today.

The E-Max uses intelligent graphics – like a speedometer to show current energy use and a budget bar to help you keep track of costs.


Track your home energy use

The E-Max comes with a data history function allowing you to compare usage overtime periods, today/yesterday, this week/last week, this month/last month, in cost, kWh and kgCO2.


Energy Data

You can also easily download your energy data into a CSV formatted file, simple plug in your USB memory stick, and watch the display as it quickly uploads your data to the stick. Plug the USB memory stick into your computer and simply use Excel to read the data stored. The data downloaded include the latest 31 days, 12 months (hourly), and 24 months.

Peak Tariff & High Usage Alerts

The E-Max will show you when you are on your peak tariff, alerting you to avoid using high energy-consuming appliances, such as washing machines or tumble dryers at this time. You can even set High Usage alert to let you know when you may just have too many things turned on


See which of your appliances uses the most energy

The E-Max allows you to discover the energy consumption of your appliances and set a budget to help you meet your saving target.


This Month Always On & Peak Usage

Other useful features of the E-Max include Always On function which allows you to see what your home is consuming 24 hours a day and Peak Usage which shows the high usage since installing the display, giving you an indication of spikes in consumption. This can also be used for sizing standby generators or solar installations.


Monitor, reduce and save both energy and money

The E-Max has battery backup which means it can be carried around the house while checking the power consumption of appliances. To do this simply check the energy consumption before you turn off an appliance and then monitor the change.


Compatible with the Engage/Elite/E2

The E-Max is compatible with the Efergy  Engage, Elite and E2, meaning if you want to add a new display to your current system you can just buy the E-Max display and pair it with the transmitter and sensor(s) of your existing system.



  • Model Number: E-Max
  • Dimensions: 167 x 25 x 127 mm
  • Power Supply: DC 5V or Alkaline Battery
  • Data Download: Yes
  • USB Port: Standard USB-2.0
  • Backlit Control: Always on or timed
  • Multiple Currencies: $, €, £, ₹, Kr
  • Multiple Tariffs: Up to 4 electricity tariffs
  • Accuracy: 4Up to 98%
  • Radio Frequency: 33.5MHz
  • Transmission Interval: 10 seconds
  • Transmission Range: Up to 70m in an open area

Additional information

Monitor only or Monitor and transmitter

Monitor only, Monitor and transmitter


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