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Shelly EM power meter + Shelly 120A current transformer (bundle)

Shelly EM is Shelly’s compact size single phase power meter, with 1 pcs of a 120A current transformer included in this bundle. (You may order 1 additional current transformer, if needed.)

With Shelly EM you can also measure how much energy your solar system produces and the power consumption ath the same time.

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Supported protocols:
in stock (50+ pcs)
Saving 3.18 €

Shelly EM is Shelly's single phase power meter for recommended for both home and corporate use. Shelly ЕМ can monitor energy consumption in real time in 2 points simultaneously (up to 120A each). With Shelly EM you can also measure how much energy your solar system produces and the power consumption at the same time.

365 day built-in energy history.
We developed Shelly ЕМ to allow you to monitor the status and history, as well as the current and past electrical power consumption for the day, week, month or year.

Small size full of functionalities: Intelligently designed to fit in most standard electrical boxes and switches. Shelly EM is smaller than  cookies stacked together.

It can automatically turn off the whole circuit if consumption or energy (pre-paid energy option) reaches the set limit and has integrated relay output made for contactor control.

Detailed info about electricity consumption: With Shelly EM, you can view the quality of your energy network regarding active power, reactive power, voltage, and power factor. Monitor your facility or home to avoid additional expenses or drastic drops in energy that may damage your appliances and machines.


  • 110-230V ±10, 50/60Hz AC, Shelly EM is compatible with all major international voltage standards.
  • Small size: 39x36x17mm
  • equipped with built-in Wi-Fi
  • precise power meter with 1% accuracy, 50A and 120A current transformers are available, sold separately
  • MQTT, rest API support
  • Monthly expenses
  • 365 days consumption history stored on the device
  • User friendly charts
  • Detailed report downloadable in csv
  • Relay output for contactor control: 2 A / 230 VAC / 50/60 Hz



  • 2 x consumption (W),
  • 1 x current (A)
  • 1 x voltage (V)
  • 2 x energy (Wh), consumed energy from power grid
  • 2 x energy (Wh), generated energy from a photovoltaic system
  • 2 x reactive power (Var)


WiFi connection:

  • Shelly EM - similarly to other Shelly devices - has a built-in web server, that is, can work in Access Point mode.
  • It can connect to home or corporate WiFi network and be managed from the free Shelly Cloud app (available for Android and iOS)
  • No need for gateway, controller or hub, it connects directly to WiFi as a WiFi client or access point
  • Supported WiFi protocols: 802.11 b / g / n (2.4 GHz)
  • Can work as a standalone device or connected to Shelly's Cloud
  • Turn devices on/off directly from your smartphone or tablet. You can manage Shelly EM output from Shelly app, MQTT or Rest API
  • On home networks it seamlessly integrates with home automation systems via HTTP and/or UDP protocols



  • overpower control


Scheduling, timers:

  • Choose a time and create custom daily schedules for your devices.
  • Auto turn on and off by hour or sunset and sunrise.


For developers:

  • Its facotry firmware supports integration to various home automation systems.
  • You can manage ShellyEM output from Shelly app, MQTT or Rest API.
  • REST API documentation can be found here:
  • Shelly ЕМ comes with a programming/debug header which can be used to flash alternative firmware on the device.

One application, countless possiblities: With the best cloud service in the world, user-friendly interface, scenes, bulk control, and much more, the Shelly Cloud application allows you to control your home from anywhere. Each Shelly can be integrated and works with all other Shelly devices in the Shelly App.

Device power supply:
110V-240V AC
Built-in memory:
yes, power measurement data can be stored on the device, even in offline mode
Ethernet (RJ-45):
Controllable from internet:
Cloud mode:
yes, Shelly devices may connect to factory cloud (optional setting)
120 g/pcs
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Shelly EM power meter + Shelly 120A current transformer (bundle)
Shelly EM power meter + Shelly 120A current transformer (bundle)