Best selling Energy monitors from Shelly
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1. Shelly Pro 3EM 120A
The Shelly Pro 3EM is a Wi-Fi-operated, DIN-mountable 3-phase power consumption meter with Wi-Fi, Bluetooth, and LAN connectivity. With its 1% accurate active energy measurement, the Shelly Pro 3EM can be used to monitor the consumption of all household appliances, circuits, and office devices individually. Historical data is stored for up to 60 days, with each phase having a one-minute resolution. Additionally, the scripting functionalities allow for the execution of complex scenarios and provide advanced monitoring options.
Includes 3 current transformers 120 A.
What our customers think
Pro
- Very simple installation
- Daily, weekly, monthly and annual consumption readable in the app
- Works with Home Assistant
Contra
- Converters are quite large and bulky
- The cables of the measuring clamps are somewhat short
- You have to register for the app
2. Shelly Pro 3EM-3CT 63
Next generation of DIN rail mountable energy meters for single or three-phase applications with a combined 63A, 3-phase current transformer.
The Shelly Pro 3EM-3CT63 is a DIN rail mountable energy meter for single or three phase applications. It is equipped with all the flexibility of Gen2 firmware and LAN connectivity and offers professional integrators additional options for end customer solutions. It can operate standalone on a local LAN and/or Wi-Fi network or via cloud home automation services using Modbus, MQTT, HTTP and WebSocket. All incoming connections support TLS.
The device reports the accumulated energy as well as the instantaneous voltage, current, active and apparent power per phase/channel in real time. It stores data in non-volatile memory, which can be retrieved at 1-minute intervals over a period of up to 60 days.
The device has a real-time clock that maintains the correct time if the connection to an SNTP server is lost.
The Shelly Pro 3EM-3CT63 can be accessed, set up and monitored remotely by the user and the device can access and communicate with an automation system as long as they are on the same network.
The device has an integrated web interface that can be used to monitor and control the device and customise its settings.
Note: The device does not have a built-in relay. The contactor is controlled via a Shelly Pro 3EM switch add-on connected to the Shelly Pro 3EM-3CT63.
What our customers think
Pro
- Very simple installation
- Daily, weekly, monthly and annual consumption readable in the app
- Works for 3 phases
Contra
- Converters are quite large and bulky
- The cables of the measuring clamps are somewhat short
- You have to register for the app
3. Shelly PRO EM - 50
The Shelly Pro EM-50A is a DIN-mounted single-phase energy meter with an integrated switch for relay control. With an accuracy of 1% in measuring active energy, the Shelly Pro EM-50 can be used to monitor consumption and control various household appliances, circuits, and office equipment. The device features a data history of 60 days in 1-minute intervals. Additionally, its scripting capabilities allow for the execution of complex scenes and provide more comprehensive monitoring options.
What our customers think
Pro
- LAN capable
- App controllable
4. Shelly 3EM
The Shelly 3EM distinguishes and detects energy consumption and energy feed-in to the grid. The measurement data is displayed in the app, the optionally activatable cloud, and the web interface in clear graphics. Additionally, MQTT can be activated to register it with a corresponding MQTT broker. It is factory calibrated with the included clamps, achieving an accuracy of over 99%. Furthermore, it features a relay contact that can be used to control a relay, for example. Installation is done in the distribution box on the DIN rail. The measurement values are displayed in real-time. It is also possible to calculate energy costs. The Shelly 3EM can be controlled via the Shelly app, the optionally activatable cloud, as well as through MQTT and REST API. Energy consumption thresholds can be set, and when reached, the Shelly 3EM can switch off the power via the relay contact. Control based on time or sunrise and sunset is also possible. In addition to measuring energy consumption, the energy fed into the grid can also be measured. The Shelly 3EM automatically detects how much energy is consumed and how much is fed in, presenting this information clearly in a graphic. The measurement data is stored in the cloud for 365 days. The data is also written to a CSV file in 5-minute intervals, which can be exported by the Shelly 3EM. The Shelly 3EM features a programming and debug header that can be used for flashing alternative firmware. It is equipped with an ESP8266 with 4 MB of flash. It can be integrated into various smart home systems: Home Assistant, Hubitat, openHAB, Domoticz, REST API, MQTT, ioBroker, nymea, and HomeSeer.
Included in delivery: 1x Shelly 3EM, 1x user manual, 3x current transformers 120A.
What our customers think
Pro
- Viewable from anywhere in real time via app.
- Simple installation
- Simple assembly
Contra
- somewhat complicated to integrate into the WLAN
- Current transformers are somewhat large where space is limited
- Clamps are relatively large
5. Shelly 3EM-63W Gen3
The Shelly 3EM-63W Gen3 (Wire Model) is an advanced three-phase energy meter specifically designed to accurately measure energy consumption in three individual phases. With a maximum load of up to 63 A and an accuracy of 99 %, this device fulfils IEC 62053-21 Class B standards. It enables real-time monitoring of power data such as current, voltage and power factor with a resolution of one minute. In addition, the Shelly 3EM-63W stores energy consumption data at hourly intervals for up to five years, enabling comprehensive analysis of energy consumption. The compact design integrates electronics and current transformer in one unit, minimising the space required on the DIN rail. Easy installation and advanced connectivity options make this device an ideal choice for modern smart home applications.
What our customers think
Pro
- Very small
- simply installed
- Easy to configure
6. Shelly 3EM-63T Gen3
The Shelly 3EM-63T Gen3 (Flat Terminal Model) is an advanced three-phase energy meter specifically designed to accurately measure energy consumption in three individual phases. With a maximum load of up to 63A and an accuracy of 99%, this device fulfils IEC 62053-21 Class B standards. It enables real-time monitoring of power data such as current, voltage and power factor with a resolution of one minute. The integrated data storage allows energy consumption data to be stored for up to five years, enabling comprehensive analysis of energy consumption over longer periods of time. The Shelly 3EM-63T is easy to install and requires no additional space on the DIN rail as the electronics and current transformers are integrated in a compact housing. The device also offers broad compatibility with over 200 smart home systems, making it a flexible solution for modern households.
What our customers think
Pro
- Very small
- simply installed
- Easy to configure
7. Shelly Split Core
Current transformer clamp for Shelly Pro 3 EM. Rated primary current: 120 A. Rated secondary current: 40 mA. Accuracy: 1%. Can measure up to 120 A for each phase and the neutral conductor. Phase sequence error detection (optional). Memory that can be retrieved over a period of up to 60 days in 1-minute intervals. Two-way energy consumption monitoring. Monitor your home, office, or factory to avoid unnecessary expenses or voltage drops that can damage your household and office appliances. Shelly Pro 3 EM can calculate two-way consumption: produced and consumed energy for each of the three phases. The device can also be configured to measure three separate circuits of a single-phase electrical system. Displays the quality of your power grid in terms of active power, reactive power, voltage, and power factor.
8. Shelly EM WiFi-Energy Meter incl. 50 A current transformer terminal, type
WLAN power meter with switch output and a 50 A current transformer clamp. Two independent channels for measuring up to 120 A per channel. A switch output of up to 2 A or control of a relay. Memory for one year of local storage of energy measurement data. Voltage measurement and configurable alarm notifications. Control via app, browser, or REST API. Daily and weekly timers or consumption-dependent control. Monitor your energy consumption in real-time. With the Shelly EM, you can measure two circuits with up to 120 A each using two current transformer clamps. Through the app or the cloud, you can view your consumption history and optimize it to save electricity and money. An export function for the data is also available. For developers: The Shelly EM is equipped with a programming/debug header that can be used to flash alternative firmware. It has an ESP8266 with a 4 MB flash chip built-in. Supported platforms include MQTT, ioBroker, Home Assistant, OpenHAB, Domoticz, and REST API. Energy measurement: With the Shelly EM, you can simultaneously measure how much energy your house is consuming and how much energy your solar system is producing.
9. Shelly Energiemessgerät EM Mini Gen4 (Dual Pack
The Shelly EM Mini Gen4 is a compact smart home energy meter designed for precise real-time measurement of current, voltage, power, and energy consumption. With multi-protocol connectivity via Wi-Fi, Bluetooth, Zigbee, and Matter, it can be flexibly integrated into modern smart home systems – making it ideal for consumption analysis, load monitoring, and automated controls. The Shelly EM Mini Gen4 is a versatile energy meter for alternating current (AC) that can be installed in junction boxes or distribution boards. It accurately measures current, voltage, power, active energy, and energy consumption, providing this data in real-time for monitoring, consumption analysis, and automation. The multi-protocol connectivity via Wi-Fi, Bluetooth, Zigbee, and Matter allows for flexible integration into smart home environments and control via app, voice assistants, or automation rules. The compact EM Mini Gen4 supports a wide range of loads, from small household appliances to larger consumer groups, making it suitable for energy optimization, load management, or detailed consumption evaluation. By integrating with smart home automation, more efficient processes and schedules for energy management can be realized.
10. Shelly Pro 3EM 120A V2
The Shelly Pro 3EM V2 is a highly advanced three-phase energy meter specifically designed for mounting on DIN rails. This multifunctional measuring device offers comprehensive power monitoring features suitable for residential, commercial, and industrial applications. With a maximum current capacity of 120 Amperes per phase, it enables real-time monitoring of energy consumption across all three phases without the need for a separate central unit. The integrated Wi-Fi and LAN connectivity allows for flexible network integration and remote access to energy data via compatible applications. The device measures active energy with an accuracy class of B, ensuring reliable data collection for effective energy management. Its compact design facilitates installation in standard distribution boxes, making it an ideal monitoring device for high-performance installations, including photovoltaic systems.
- Real-time monitoring of energy consumption across three phases
- Maximum current capacity of 120 Amperes per phase
- Wi-Fi and LAN connectivity for flexible integration
- Accuracy class B for reliable data collection.
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