Best selling Energy monitors

Here you’ll find the best-selling products in the Energy monitors category. The ranking is primarily based on sales volume, while also taking factors such as availability, price trends, and overall customer relevance into account. For each product, we provide a short description and the most important insights from customer reviews so you can quickly compare the most popular options. This page always stays fresh and updates automatically.

1. 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.
 

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

Energy meter / Voltage: 220-240V / Power: max 2300W / Additional function: increased touch protection. This energy meter is designed to measure the energy consumption of the connected device 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 retrieved. An ideal device for implementing targeted energy-saving measures. • Measures the energy consumption of connected devices • Power, voltage, current, power factor, frequency, and operating time can be retrieved • Ideal 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 the voltage, frequency, current, and power values in real-time and works with all electrical devices in your household. 

4. 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. 

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. 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, which is elegantly integrated into the housing, you can quickly see the current energy demand of the connected device. The LED ring's color 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 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: Simply turn the VOLTCRAFT SEM6000 CH on and off 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: Want your lighting to automatically turn on at 8 PM and off again at 6 AM? No problem. Program your switching times easily via 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 one-time or recurring (selecting the weekdays on which the switching time repeats).

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

7. Brennenstuhl Primera-Line PM 231 E

Helps to save costs and energy. Measurement of voltage, frequency, current, power factor and power. Calculation of total energy consumption and energy costs. Display of the measuring time in hours and minutes. 2 individually adjustable electricity tariffs (day + night). Includes 3 batteries LR44 for data storage in case of power failure. Socket outlet with child protection. 

8. 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. 

9. 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. 

10. 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. 

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