75.00 inc.Vat if applicable

Energy harvesting wireless sensor

harvi is an essential part of the installation process if you want to save time and money.

It has many great qualities including the elimination of unsightly wiring around the home & prevents the need to lift up floor boards or disrupt home decor.

This intelligent device enables the myenergi product family to be installed without using a hardwired current transformer.


Current Lead Time 2-3 Weeks


No batteries,
no hardlines,
just intelligence


eliminate batteries and wires for €75.00


Delivery status: In stock
havi hero

A clever little device

harvi is a clever little device that allows the zappi and eddi to be installed without a wired CT clamp. The harvi is an energy-harvesting wireless sensor – an essential part of the installation process that saves time and money.

It eliminates unsightly wiring, prevents disruption to your home decor, and enables the myenergi product family to be installed without using a hardwired current transformer.

harvi connection

No power needed

harvi enables your zappi and eddi products to be installed without using a wired current transformer (CT); instead the CT is connected to harvi directly.

No power source is needed for harvi – the energy from the CT is harvested and used to transmit the measurement signal to the zappi or eddi.

harvi is fully compliant with worldwide power grid standards and comes with a 3-year warranty.

Perfect combo

Perfectly pair all your myenergi devices easily, go wireless with harvi and control your home’s flow of energy with the myenergi app.

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harvi combo

harvi… the perfect partner for all your myenergi products

Fix up charge smart

eco energy

No Batteries or Electrical Wiring

harvi enables your eddi to be installed without a trail of wires around the home, to harvest your energy in an aesthetically pleasing way.

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Accurate measurements

harvi offers grid / generation / storage measurement  functions which are configurable, providing fast and accurate measurement

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Reliable remote access

The myenergi app allows you to access and control your devices from anywhere in the world! Visual graphs allow you to monitor your import/export information all in one place.

I’m a happy customer

I have had a harvi, eddi and zappi for about a year. I haven’t found any negatives, so I am a happy customer.


Easy to install

harvi bottom


Specification Details
CT Inputs 3 inputs enable 3-phase or multi-point power measurement
Measurement Range 25W to 15kW (50Hz AC, import and export)
Energy Harvesting Range 0.2A to 65A (including reactive current)
Accuracy 2.5% typical
Transmission Rate 1s @ 1A+, <10s @ 0.5-1A, <30s @ <0.5A
Wireless Interface 868 MHz (proprietary protocol)
Mounting Location Indoor only (can be housed in an IP rated plastic box if required)
Operating Temperature -30°C to +50°C
Dimensions 98 x 98 x 36
Patented Technology Number GB2562550