European Bundle (230V)

(2 customer reviews)

From: $182.00 $166.45

Everything needed to monitor 230V single-phase European service. Add two mains CTs to monitor three-phase. Easily extended to monitor up to 14 circuits including solar.  More details in description below.



Easily installed with snap-around current sensor for the main, a wall plug AC reference transformer, and a wall plug USB power supply.  Connects to home WiFi with an integrated local web-server.  Browser based configuration using phone, tablet or computer.  Display and export data using integrated visualization tools. Uploads data to popular cloud services including PVoutput, Emoncms and influxDB.

  • Add an ECS10-50 CT to the bundle to monitor solar inverter up to 12kW.
  • Add up to 12 additional CTs to monitor individual circuits.
  • Open hardware with open source firmware.
  • Can be used with three-phase power systems.
  • Stores high resolution usage data for more than 10 years.
  • All connections plug and jack.
  • ETL certified to UL standards, FCC and CE.
  • Less than half the cost of well funded highly advertised alternatives.

Bundle includes:

  • IoTaWatt Base
  • USB Power Supply
  • AC Reference Transformer
  • 1 – ECS12-100 100A CT


  • additional ECS16-100 CTs
  • additional ECS10-50 CTs
  • additional ECOL09 CTs

Additional information

Weight 1 oz
Dimensions 6 × 6 × 1 in

2 reviews for European Bundle (230V)

  1. PATRICE FIEVRE (verified owner)

    This is really good energy monitor, much better than I expected.
    Easy to install, easy to configure and affordable.

    I live in France and use it with a Raspberry Pi3/HDD/InfluxDB & Grafana to store and vue datas.

    The reported error in less than 0,9% on a day, in comparison with real data of energy supplier.

    Thank you Bob

  2. Franck

    This is an outstanding little device that has no equivalent on the market in terms of features / price ratio. I use it to monitor appliances and solar production in a three phase household in France, and coupled with an emonBase over WiFi it has performed flawlessly!

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