Top rated Energy monitors
This page always stays fresh and updates automatically.
1. 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.
What our customers think
Pro
- Large, simple display
- Large display
- Simple operation
Contra
- Rather large, could be a smaller display with smaller numbers
- Built-in battery deeply discharged on delivery, probably defective
- Unintuitive operation
2. 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.
What our customers think
Pro
- Simple operation.
- Measures from 200mW (this is important to measure the stand-by consumption)
- Many functions
Contra
- The writing on the display is very difficult to read
- Display difficult to read, you need good eyesight
- Display very small and only legible in good lighting conditions
3. 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
- Simple installation
- Works with Home Assistant
- Easy to install and the app is also easy to use
Contra
- The current clamps may be too large in a narrow tableau
- Current clamps too large, cables too short
- You have to register for the app
4. Shelly Pro 3EM 400A
Shelly Pro 3EM-400 is a three-phase energy meter for DIN rail mounting. Equipped with full gen2 firmware flexibility and LAN connectivity, it 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 via MQTT, HTTP and WebSocket. All incoming connections support TLS. The device reports the cumulative energy as well as the instantaneous voltage, current, active and apparent power per phase in real time. It stores data in non-volatile memory, which can be retrieved at 1-minute intervals for a period of up to 60 days. The device has a real-time clock to maintain the correct time if the connection to an SNTP server is interrupted. Shelly Pro 3EM-400 can be remotely accessed, set up and monitored by the user. The device can also access and communicate with an automation system as long as it is in the same network infrastructure. The device has an integrated web interface that allows you to monitor and control the device and customise its settings. The device does not have a built-in relay. The contactor is controlled via a Shelly Pro add-on, which is connected to the Shelly Pro 3EM-400. Scope of delivery: 3x 400 A current transformers
What our customers think
Pro
- Very simple installation
- Works to a limited extent even without the cloud
- Simple installation, easy integration into the network, detailed app and overview
Contra
- The current measuring coils are somewhat large, so you need to have enough space for them
- Cable to power terminals too short
- Graphic display on the app looks overloaded - too much information
5. 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.
6. 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
- good app via the cloud to check the current values
- Simple installation
- Easy assembly
Contra
- somewhat complicated to integrate into the WLAN
- Clamps are relatively large
- Current direction of the terminals incorrectly labelled
7. 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.
What our customers think
Pro
- Evaluation via the app works great
- .csv data export works perfectly
- Amazing Bluetooth range (through thick concrete walls)
Contra
- App needs location to work
- No access to data outside the Bluetooth range of the device
- no wifi (I don't need it)
8. 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.
What our customers think
Pro
- Simple operation
- Good workmanship
- Display of the total electricity consumption
Contra
- Plug cannot be rotated
- A reset must be performed for a new measurement
- No smart function
9. Max Hauri EMR-1 energy meter
Energy Meter EMR-1
Voltage: 220-240V
Power: max. 2300W
Batteries: 3x 1.5V LR44
Additional feature: Child protection
This multifunctional power meter is suitable for measuring and displaying the power consumption of an electrical device, helping to determine how much electricity each device uses. To use it, simply plug the device between the power outlet of the electrical device and the power source.
After programming the electricity tariff in two tariff levels, the consumed energy costs are calculated and can be easily read. Additionally, current values for voltage, current, and power, as well as total electrical work and operating time, are determined. With its simple and modern design, this energy meter fits into any living space.
What our customers think
Pro
- Simple operation
- Good workmanship
- Simple handling and display
Contra
- Rotatable plug would be nice
- A reset must be performed for a new measurement
- No smart function
10. Orno 3-phase electricity meter
The Orno 3-phase energy meter is a highly precise measuring device designed for monitoring electricity consumption in three-phase systems. With an accuracy class of B and a measurement range of 0.25 to 80 Amperes, this single-rate meter provides reliable and accurate readings of energy usage. The digital LCD display allows for clear and easy reading of consumption data, while the reverse flow prevention feature ensures that no unwanted backflows are recorded. The meter is suitable for mounting on a DIN rail and features an S0 interface, enabling easy integration into existing systems. With a frequency range of 50 Hz, this energy meter is ideal for use in various electrical applications and offers a robust solution for energy monitoring.
- LCD display for clear readings
- Reverse flow prevention to prevent unwanted backflows
- S0 interface with 800 impulses/kWh
- Suitable for DIN rail mounting
- Frequency range of 50 Hz for versatile applications.
Product order
See all products