Energy meters

Which meter is right for you

Shelly EM Mini (16 A) for metering a single appliance; Shelly EM (50 A) for a single-phase circuit; Shelly 3EM and Pro 3EM (63 A, 120 A, 400 A) for a 3-phase panel, for homes, businesses and industry. The Pro meter has an add-on with a dry contact for controlling a contactor, and current transformers in different sizes to match the connection.

What it measures and why

Total and per-phase consumption, power, voltage, current and power factor, accurate to the second. With a solar system you see production against consumption and what goes back to the grid. With an electric car you know exactly what each charge cost. The data is stored in the Shelly app and is also available to Home Assistant and to energy management systems.

Real savings

A smart meter finds the "energy hogs": a water heater left on, an air conditioner running for nothing, an appliance on standby. Combined with Shelly relays, you can turn measurement into action: switch off automatically when consumption spikes, or run the water heater only when there is surplus solar production. Installation in the electrical panel is done by an electrician.

How much does a smart energy meter cost?

The price depends on the size of the connection and the number of phases:

• Metering a single appliance or circuit: Shelly EM Mini Gen4 (16 A, single-phase): ₪85.
• A 3-phase home panel: Shelly 3EM and 3EM-63 Gen3 (up to 63 A per phase): ₪495.
• A large panel, a business or EV charging: Shelly Pro 3EM (120 A): ₪825, and the 400 A version for industry: ₪1,429.
• Add-ons: current transformers (From ₪89) and an add-on for the Pro 3EM with a dry contact for controlling a contactor (₪165).

No subscription fees: the app, history and reports are all included. You can set your electricity rate in the app and see your consumption directly in shekels. How to set the rate.

Installing a smart energy meter

The 3EM and Pro models are installed in the electrical panel on a DIN rail, and measure current through current transformers: clamps that close around the cables, or built-in transformers, depending on the model. The tiny EM Mini also fits into the wall box behind an outlet or switch. The work is done in the electrical panel, so it must be carried out by a licensed electrician. You can book an electrician who knows Shelly products.

Full wiring guides: connecting Shelly 3EM to 3-phase, to two phases, and to three circuits on one phase. After installation, you connect the meter to your Wi-Fi network through the Shelly app in a few minutes.

Energy meters for a rental unit, a storage room or a tenant

A smart meter is the simple way to measure the consumption of a rental unit, a clinic, a storage room or central air conditioning separately, without installing another utility meter. You install the meter on the unit's circuit, and at the end of the month the app shows how many kWh it used and what that costs. You can export a report and split the bill fairly. For a house with several units, Shelly 3EM measures three separate circuits on the same phase with one meter.

Remote reading and bidirectional metering

You see all the data in real time on your phone, from anywhere, without going to the panel. The meters measure in both directions, so in a home with a solar system you see separately how much was drawn from the grid and how much was fed back into it. You can also get an alert when consumption spikes, and connect the data to Home Assistant or an energy management system. More on energy management with a smart meter.