Top rated Energy monitors

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

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 real-time voltage, frequency, current, and power values, and works with all electrical devices in your household. 

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. 

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.
 

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.
 

5. 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.
 

6. 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.
 

7. 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. 

8. 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. 

9. Eltako Alternating current meter

Only calibrated meters are approved for electricity billing according to §25 of the German Calibration Act. Non-compliance is an administrative offense under §19. Maximum current is 32A, with a standby loss of only 0.4 watts. This is a modular device for mounting on a DIN-EN 60715 TH35 rail. 1 division unit = 18mm wide, 58mm deep. Accuracy class B (1%). Equipped with an S0 interface. This alternating current meter measures active energy based on the current flowing between the input and output. The self-consumption of only a maximum of 0.4 watts of active power is not measured or displayed. One external conductor can be connected with a current of up to 32A. The starting current is 20mA. For expected loads exceeding 50%, a ventilation distance of 1/2 division unit must be maintained from adjacent devices. If necessary, use the spacer DS12. Two N terminals for safe cross-wiring of multiple meters. The 7-segment LC display can also be shown twice within two seconds without power supply. 

10. Eltako Energy meter

Mobile three-phase energy meter with CEE plug 32A and CEE socket 32A. Suitable for indoor and outdoor use. Maximum current 32 A, standby loss only 0.5 watts per path. Housing dimensions 180 x 86 x 82 mm, connection cable 1.5 m (including plug and socket). Accuracy class B (1%). This mobile three-phase energy meter measures active energy based on the current between input and output. The internal power consumption of max. 0.5 watts active power per path is neither measured nor displayed. The inrush current is 40 mA. The display is only readable when the power supply is switched on. However, the consumption is stored non-volatile and immediately displayed after a power failure. The digital display is 7 digits. Up to 99999.99 kWh, two decimal places are shown. Above 100,000.0 kWh, only one decimal place is displayed. The power consumption is indicated by the LED blinking 100 times per kWh.