European Bundle (230V)

(5 customer reviews)

From: $169.80

Basic bundle for typical European 230V single-phase service.

  • Single phase 230V
  • Three-phase 230V/400V wye (four-wire)
  • Three-phase 230V delta (three wire)
  • Up to 14 total circuits
  • Handles solar and net metering

Pictures representative of available products, not actual order.

See description below for details


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.

IoTaWatt Standard Base V5

Integrated Wall Mount
Allows direct-reference three-phase


In stock

USB Power Supply (Euro Plug)

Powers Base Unit - Euro Plug


In stock

9V AC Reference Transformer 230V Euro Plug

Voltage Reference Transformer
230VAC to 9VAC

$12.60 each

In stock

AccuCT 100A x 16mm split-core

Use for 100A mains, branch-panels, and high-load appliances.
Up to 100 Amps
Opening .63" (16mm)

$11.20 each

In stock

AccuCT 50A x 10mm split-core

Monitor Branch Circuits and Solar Inverters to 12kW
50 Amp
Opening 0.4″ (10mm)

$8.40 each

In stock



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 a 50A CT to monitor solar
  • Add up to 12 additional CTs to monitor individual circuits.
  • Open source firmware preloaded with optional automatic update.
  • Can be used with three-phase power systems.
  • Stores high resolution usage data for more than 10 years.
  • All connections plug and jack.
  • CE compliant.

Bundle includes:

  • IoTaWatt Base
  • USB Power Supply
  • AC Reference Transformer
  • 1 – 100 Amp CT


  • additional 100 Amp CTs
  • additional 50 Amp CTs

Additional Features:


5 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!

  3. Tobias

    Support is absolutely great. My unit was broken and was replaced after we found out it was a hardware issue.

    I use all 14 channels to log power consumption of my house in Switzerland (incl. a groundwater heat pump). Works perfect.

  4. dmcatalin (verified owner)

    The product was easy to install and the setup went smoothly: I just plugged the transformers and configured the input channels. I have been using it for a week and it is working great. Everyday I am amazed by how much info you get from such a small device. Thank you Bob for this great product!

  5. Johann (verified owner)

    I have bought this bundle and some extra CT’s.
    It is the only unit that fit my needs. A lot of channels and easy setup!
    It is capable of monitoring the 3phase system we have here in Austria.

    Had a little delay with shipping, but support from Bob was perfect!
    Happy to have one and hopefully will find the energyhungry parts in our house.

    Happy IotaWatt user!

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