Best selling Energy monitors

Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.

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.
 

2. Max Hauri Energy meter 220-240V max. 2300W

Energy measuring device. Voltage: 220-240V. Power: max 2300W. Additional feature: enhanced touch protection. This energy measuring device is designed to measure the energy consumption of the connected appliance and calculate the resulting electricity costs. The electricity price is freely programmable. Important additional data such as power, voltage, current, power factor, frequency, and operating time can be easily accessed. An ideal device for implementing targeted energy-saving measures. 

3. Steffen digital brilliant

Ideal for indoor use. Displays watts, amperes, volts, hertz, power factor (cos φ), or kilowatt-hours. Equipped with overload protection. Two tariffs can be set. Features a large LCD display. The energy meter shows you real-time voltage, frequency, current, and power values, and works with all electrical devices in your household. 

4. Shelly PM Mini Gen3 x2

The Shelly PM Mini Gen3 is an advanced, Wi-Fi-controlled energy meter designed for precise real-time monitoring of electricity consumption. With a powerful ESP32 processor and expanded flash memory, this device supports a maximum current of 16 A at 240 V AC. It allows for detailed analysis of energy usage through free cloud data storage, facilitating easy optimization of consumption behavior. The PM Mini Gen3 is versatile and supports various protocols and technologies, including scripting, webhooks, and MQTT, making it a flexible solution for modern smart home applications. Control is straightforward via the Shelly Smart Control App or popular voice assistants, with no hub required. Its compact design makes the PM Mini Gen3 ideal for integration into existing systems.

- Real-time power measurement with free cloud data storage
- Supports a maximum current of 16 A at 240 V AC
- Compatible with scripting, webhooks, MQTT, and other protocols
- Easy control via the Shelly Smart Control App and voice assistants
- Wi-Fi and Bluetooth Low Energy for flexible connectivity.
 

5. 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.
 

6. Shelly PM Mini Gen3

Shelly PM Mini Gen3 is a smart power meter with a compact design that enables remote monitoring of the electricity consumption of electrical devices. It can be retrofitted into standard flush-mounted boxes, behind sockets and light switches, or in other locations with limited space. The device can be accessed from anywhere the user has an internet connection. It can be controlled and monitored as long as it is connected to a Wi-Fi router and the internet. The device features an integrated web interface that allows you to monitor, control, and adjust its settings. 1 piece. 

7. Shelly Pro 3EM-3CT 63

Next generation of DIN rail-mounted 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-mounted energy meter for single or three-phase applications. It is equipped with the full flexibility of Gen2 firmware and LAN connectivity, providing professional integrators with additional options for end-user solutions. It can operate independently in a local LAN and/or Wi-Fi network or through cloud home automation services using Modbus, MQTT, HTTP, and WebSocket. All incoming connections support TLS.

The device reports accumulated energy as well as instantaneous voltage, current, active power, and apparent power per phase/channel in real-time. It stores data in non-volatile memory, which can be retrieved over a period of up to 60 days in 1-minute intervals.

The device features a real-time clock that maintains the correct time in case the connection to an SNTP server is lost.

The Shelly Pro 3EM-3CT63 can be accessed, configured, 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 a built-in web interface that can be used to monitor and control the device as well as to adjust its settings.

Note: The device does not have a built-in relay. The control of the contactor is done through a Shelly Pro 3EM Switch add-on connected to the Shelly Pro 3EM-3CT63.
 

8. 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. 

9. Voltcraft SEM6000 CH

Elegant design meets top precision. The VOLTCRAFT SEM6000 CH BT energy cost meter offers the perfect compromise between design and functionality. Hidden within the compact 55 by 55 millimeter pure white housing of the SEM6000 CH is high-quality measurement technology that accurately measures power consumption and power factor to three decimal places.

Current energy consumption at a glance: Thanks to the simple LED ring, seamlessly integrated into the housing, you can easily see the current energy demand of the connected device. The color of the LED ring ranges from deep green to red, changing according to energy consumption. Green indicates low consumption, while red signals high energy demand.

Consumption analysis in your preferred file format: You can easily and conveniently convert the energy consumption data into various Office and Google formats in the form of graphs. Whether you want to analyze days, weeks, months, or years, it’s all possible.

Your smartphone becomes a remote control: Turn the VOLTCRAFT SEM6000 CH on and off effortlessly using your smartphone or tablet. This way, it not only serves as an energy cost meter but also transforms your device into a remote control.

Automated switching of connected devices: Do you want your lighting to automatically turn on at 8 PM and off again at 6 AM? No problem. Program the switching times conveniently through your smartphone or tablet. You can program a total of 12 switching times (either on or off) for the SEM6000 CH. Each switching time can be set as a one-time event or with repetition (selecting the weekdays on which the switching time will repeat).

Special features: Bluetooth interface, data export, data logger function, cost forecast, adjustable electricity tariff, app control.
 

10. Whatwatt Energiemessgerät

The Whatwatt WiFi Energy Meter is an advanced device for monitoring and analysing energy consumption. It enables precise measurement of energy consumption and offers a user-friendly interface via WiFi and RJ-45 (LAN). With the integrated smartphone app, users can calculate their energy costs in real time and conveniently monitor consumption from their mobile device. The device supports various smart meter interfaces and is compatible with iOS and Android devices, enabling seamless integration into existing smart home systems. It also offers the option of local data storage on a micro SD card, which increases data security and makes it easy to analyse consumption data. Power is supplied via a USB-C cable, which is included in the scope of delivery, while the adapter is available separately. 

Product order
See all products