Best Power Monitors 2026

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Last Updated - 03.02.2026

Best Choice

01

Shelly

Shelly Home Relay Pro 3EM WLAN Power Meter 3 x 120 A including 3 clamps measuring function

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40% Off
9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Shelly Home Relay Pro 3EM WLAN Power Meter 3 x 120 A including 3 clamps measuring function

85,50 € 142,68 €(40% Off off)
02

GreenSun

GreenSun WiFi Socket with Current Measurement, Smart Life App, Electricity Meter for Socket, Power Consumption, Energy Cost Meter, Timer, Voice Control, Not Compatible with VeSync 4 Pieces

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Voice control: Thanks to the voice control of the WiFi socket, we can operate devices easily and conveniently with our voice without the need to rely on buttons or other manual input methods. We can control devices at the same time by giving several instructions in one sentence, such as: "Open the shutters and turn on the music".
Timer socket GreenSun: set the time to turn on or off the devices connected to the timer socket as required, connected devices work automatically at preset times. You can set up a socket with timer to permanently turn on the aquarium light and oxygen pump daily for 8-10 hours, simulating natural lighting.
Remote control with smart life app: the GreenSun WiFi socket is an innovative and practical electricity meter socket. With this smart life app, you can remotely control all household appliances at home (with the function of switching on and off). Thanks to the smart socket of the WiFi function and the compatibility with the Smart Life app, it becomes a smart device.
Measure power consumption and cost forecast of the smart socket: GreenSun WiFi socket offers power consumption counter and cost forecast function. The data such as consumption, estimated costs etc. are displayed very clearly in the app to effectively monitor power consumption, reduce electricity bill and save energy.
GreenSun WiFi socket smart life app: From now on, new WiFi sockets are controlled via the "Smart Life" app. Please download it in advance. Due to the setting of the old hardware solution, new sockets are not compatible with the VeSync app. Therefore, the Wi-Fi-based Smart Life platform has been changed. Solution: Connect both Smart Life and VeSync to your Amazon Alexa account. Then you can control all sockets by voice command.

46,99 €
03

MECHEER

Electricity Meter for Socket, 8 Modes, Ammeter, Energy Cost Meter, Power Meter, Watt Meter, Kwh Meter with Usage Time, Power Meter with Backlight

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Various monitoring parameters: the socket can monitor the power (W), energy (kWh), volts, amps, hertz, power factor, cost, minimum and maximum (W), cumulative days and time of your devices. By switching 8 display modes, you can easily know the different parameters during the operation of the device. The electricity meter can also calculate and show how much electricity your devices use and how much electricity bill it costs in the cumulative time.
Premium material: The entire body of our wattage meter is made of high-quality PC material, which makes our electricity meter socket more durable. The standard DE socket and the plug are suitable for all DE standard devices.
Overload protection: the standard overcharge power is 3680 W. When the power of the device exceeds the overcharge power, the LCD displays "overload" and emits a "beep" to warn the user. All buttons lose their function and can only be reactivated once the overload alarm has been fixed by increasing the setting value or removing the device.
KWH alarm settings: you can set a power consumption limit and when the accumulated power consumption reaches the set value, the kwh meter socket will output a "beep" stronger, and the "KWH" arm flashes continuously to alert the user. If you want to silence the alarm, you can set a higher power consumption limit or reset the power consumption limit (Note: reset will clear all settings).
Data storage function: the socket tester will record your power consumption data when you remove the ammeter socket from the socket or remove devices from the socket electricity meter. All setting data and cumulative data (electricity quantity, cost, unit price) are stored. You can see the last data directly the next time you use the energy meter (without current, voltage, power, power factors). This function can also automatically save the data when there is a sudden power failure.
Backlight: With white backlight and black numbers, the LCD display of our power consumption meter socket can display the data clearer and help you read the data that is easier day and night. The backlight only lights up when the ammeter is connected to AC connection. You can set the time for the screen to turn off automatically or press the "Down" button to manually turn the backlight on and off.
Adjustable backlight time: Our electricity meter socket has 5 options for backlight. The default backlight time is 10 minutes (bL-0). If you want to change the backlight time, you press the "Up" and "Down" button at the same time to enter the background time setting, and then press "Up" and "Down" to select the backlight time (bL-0 =10 minutes, bL-1=1 hour, bL-2=4 hours, bL-3=8 hours, bL-4=Always off), finally press the "Set to set the backlight time settings.

12,88 €
Value for Money

04

MECHEER

Electricity Meter for Socket, Power Meter Socket, 8 Modes Power Meter Socket, Energy Cost Meter, Backlight Large LCD KWH Watt Energy Meter, Power Meter Socket

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20% Off
9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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What you will receive: The box contents include an electric meter 230 V power consumption measurement and an instruction manual (English language not guaranteed). If you have any concerns about the electricity meter for socket ammeter, please feel free to contact us. - If you lose the printed manual, you can also contact us at any time for a PDF version.
Versatile power consumption meter: Kwh counter socket measures washing machines, dryers, microwaves, humidifiers, fireplaces etc., and helps to find electric thieves to save energy and money. Please note: If the load power of the device is lower than 0.5 W (e.g. in standby mode), the socket current measurement cannot detect the power consumption. Therefore, it is normal that the kWh displayed on the feed meter for socket sometimes no longer counts when the compressor is not running.
Reset button: ‘M’ button to reset the data, no tools required. Unlike other power meter for the socket with a reset tool for resetting and the risk of them getting stuck in the hole, our newly designed socket electricity meter can be easily reset. Simply press the ‘M’ button for 5s to clear all data (including price), or press the ‘M’ and ‘SET’ buttons at the same time for 3s to erase only the cumulative data.
Quick Settings: To quickly enter mode 7, the price setting mode, you can press the SET button of the electricity cost meter for 3 seconds. Use the UP button to set the desired number and the M button to select the place you want to set. Finally, press the SET button again to save your settings. A good alternative to digital timer, electricity meter for balcony power plant, electricity meter for balcony power plant.
Overload warning: 3680 W overload threshold to protect your household appliances from short circuits. The ‘Overload’ symbol and the backlight screen continue to flash when the charging power of the device you measured exceeds 3680 W. In this case, please interrupt the power supply of the consumption meter socket. Note: The currency unit (€) and the security threshold of the intermediate meter current have been set in advance.
New design electricity meter socket with 8 monitoring modes: Power consumption meter watt meter with 8 modes to measure power, total current (kWh), voltage, frequency, current and power factor of your household appliance, which meets most of your power measurement requirements. This watt meter power meter is a great energy and money saving aid to protect the earth and lower your bills. A great measuring device for your home.
Memory function: No battery required, the last data (price, overload threshold, kWh, cost) can be automatically stored if the power consumption meter suffers a power failure. This makes it a reliable and practical power meter socket for all your devices. Note: The current data including power, voltage, frequency, current and power factor are not stored. A better choice than electric meter with battery, such as B. Timer.
Large LCD screen: Designed with a user-friendly large screen of 60 x 47 cm. The screen of the electricity meter consumption meter energy meter is large enough, clear and easy to read, this makes it suitable for people with visual impairment or the elderly. It is a great gift for your grandpa to help him recognise high consumption devices and save money.
Easy to use: Newcomer to the market. Our energy meter socket is compact and easy to use with only 3 buttons, but meets most of your daily measurement requirements, while other energy cost meter sockets on the market have 4 buttons and a reset hole whose operation is too complicated, and the reset pin can always cause the button to get stuck in the hole and the sockets power consumption meter becomes unusable.
Clear white backlight: Redesigned power meter for sockets with switchable backlight for use day and night. You can turn it off manually at any time by pressing the ‘UP’ button. Compared to most wattmetres without backlight or power meters with blue backlight and black digits, our socket with electricity meter is easy to read and more comfortable for the eyes. Backlight time: 10 minutes.

10,88 € 13,60 €(20% Off off)
05

REV

Rev Ritter 0025810112 Energy Meter Compact, White

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The energy meter has an easy-to-read LCD display, which is self-explanatory and easy to use.
Simple and intuitive operation.
Measures energy consumption (kWh)| With an accuracy of <= 1% ± / kWh; <= 2% ± / W | The following values you can read from your measuring device (kWh): The total amount of electrical power picked up during the measurement period. | W: The current output. | T: The elapsed measurement time.
In the event of a power failure, your data is automatically saved.
Energy meter for all plug-in devices.

11,95 €
06

REV

Rev Ritter 0025810112 Energy Meter Compact, White

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The energy meter has an easy-to-read LCD display, which is self-explanatory and easy to use.
Simple and intuitive operation.
Measures energy consumption (kWh)| With an accuracy of <= 1% ± / kWh; <= 2% ± / W | The following values you can read from your measuring device (kWh): The total amount of electrical power picked up during the measurement period. | W: The current output. | T: The elapsed measurement time.
In the event of a power failure, your data is automatically saved.
Energy meter for all plug-in devices.

7,00 €
07

GreenSun

GreenSun WiFi Socket with Current Measurement, Smart Life App, Electricity Meter for Socket, Power Consumption, Energy Cost Meter, Timer, Voice Control, Not Compatible with VeSync 4 Pieces

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15% Off
8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Voice control: Thanks to the voice control of the WiFi socket, we can operate devices easily and conveniently with our voice without the need to rely on buttons or other manual input methods. We can control devices at the same time by giving several instructions in one sentence, such as: "Open the shutters and turn on the music".
Timer socket GreenSun: set the time to turn on or off the devices connected to the timer socket as required, connected devices work automatically at preset times. You can set up a socket with timer to permanently turn on the aquarium light and oxygen pump daily for 8-10 hours, simulating natural lighting.
Remote control with smart life app: the GreenSun WiFi socket is an innovative and practical electricity meter socket. With this smart life app, you can remotely control all household appliances at home (with the function of switching on and off). Thanks to the smart socket of the WiFi function and the compatibility with the Smart Life app, it becomes a smart device.
Measure power consumption and cost forecast of the smart socket: GreenSun WiFi socket offers power consumption counter and cost forecast function. The data such as consumption, estimated costs etc. are displayed very clearly in the app to effectively monitor power consumption, reduce electricity bill and save energy.
GreenSun WiFi socket smart life app: From now on, new WiFi sockets are controlled via the "Smart Life" app. Please download it in advance. Due to the setting of the old hardware solution, new sockets are not compatible with the VeSync app. Therefore, the Wi-Fi-based Smart Life platform has been changed. Solution: Connect both Smart Life and VeSync to your Amazon Alexa account. Then you can control all sockets by voice command.

39,99 € 46,99 €(15% Off off)
08

MECHEER

MECHEER Power Consumption Meter, Energy Cost Meter, Power Meter for Socket, Energy Meter, Power Consumption Meter, Current Meter, 5 Modes, LCD Wattmeter, KWH Current Meter, Overload Warning, 3680 W

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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What you get: EU socket electricity meter with 1 year warranty. We stand behind our product - power failure detector and want to make sure you love this intermediate meter as much as we do. If you ever have any problems or concerns with our voltage meter, contact us and we will be happy to help you.
Practical consumption meter socket: energy is money. This energy cost meter is easy to read and the best home appliances for monitoring energy consumption at home and camping. Perfect indoor electricity meter for balcony power plant, AC meter for electrical installation, camping solar system complete set, even an alternative to timer, surface-mounted socket, smart socket power consumption, radio sockets, timer socket, electricity meter DIN rail, adapter plug with switch.
Power consumption meter with memory function: do not worry about data loss due to sudden power failure. The last data is automatically saved when the power supply loses abruptly and can be read again when switched on. Compared to large power meter socket, this power meter is portable and sensitive and safe. A reliable energy cost meter socket for home use.
Power Consumption Meter Socket with Current Measurement: Our classic electricity cost meter with 5 modes to monitor the consumption of devices can meet your common measurement requirements, including POWER (WAT), VOLTAGE (Volt), POWER CONSUMPTION QUANTITY (KWH) and ELECTRICITY COST(€) to find out which devices is the largest energy consumer to save money on bills.
Perfect gift ideas: MECHEER electricity meter for socket is a practical energy meter socket that can meet your needs in consumption analysis, power consumption meter test and saving. It is also a great gift idea for Christmas gifts for men and women, home weapon gifts for mom and dad, birthday gifts for parents, friends, families.
Overload warning: the preset overload threshold is 3680 W. Once the charging power is above 3680 W, "ENERGY OVERLOAD" flashes on the display. Please turn off the device for safety reasons. Our electricity meter consumption meter is the good choice to help you save energy, electricity and money by monitoring all household appliances and office equipment, e.g. dehumidifier, fireplace, air conditioning, washing machine, hybrid car, hifi system, game consoles, printers, etc.
Note for the use of watt meter: ①Only data can be read when the feed meter socket is plugged into socket. ②The price per unit and the total cost are both in Euros. ③The power measurement socket collects KWH data only when the working power of the device is greater than 0.3 watts. ④Use a pen to press the reset button when reset. Avoid using a needle, otherwise the button may be stuck in the hole.
Large LCD screen with large digits: The power meter for sockets has a large LCD screen and displays large black digits. Even the fuel meter is plugged into the KWH counter socket near the ground, you can easily read the numbers. Compared to other meter power consumption with bulky case, our socket electricity meter with compact size is very practical and space-saving.
Easy to use electricity meter socket: 2 simple buttons. Don't worry about complicated instructions and operating steps, our power meter with 2 simple buttons has an easy to read German user manual.
Data Clear and Reset: Press the Reset button with a pen to clear the cumulative data on this current meter for the socket, including KWH, cost, but not the price, so you can easily test another device without re-setting the price. Use a pen to press the RESET button instead of a needle to prevent the reset button from getting stuck in the hole.

10,88 €
09

Goobay

goobay Electricity Meter for Socket Balcony Power Station with 5 Display Modes - Power Consumption Meter Socket with Consumption Cost Indicator - Current Meter - Measuring Range 0.5 W - 3680 W - 64589

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Features a very large measuring range between 0.5W and 3680W (max. Power: 3680 W, 16 A at 230 V)
Electricity meter calculates the running costs of household appliances and helps determine the savings potential, e.g. For refrigerator, washing machine, computer, TV and floor lamps
Easy to use via two buttons and connection via simple plug-in between the receiver and socket (type E/F, CEE 7/3)
Ammeter with easy-to-read LC display that shows energy consumption and energy costs
Allows you to read the data in real time as well as long-term measurement, as long as the device is not disconnected from the current. The power consumption meter with protection class IP20 is only for indoor use

10,10 €
10

REV

REV Electricity Meter EX – Awarded by Stiftung Warentest with Grade 1.7 – Measure Your Power Consumption, Electric Meter for Sockets, Electric Meter, Black

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Save energy & reduce costs: Identify power consumers and take targeted energy-saving measures. Reduce your electricity bills and protect the environment
Easy to use: the compact measuring device with LCD display impresses with its easy handling. Simply plug it into a socket and read the consumption after a short time
Consumption at a glance: Our electricity meter allows you to easily measure the energy consumption of electrical devices such as freezers, kitchen appliances, TVs, computers, game consoles and much more.
All data at a glance: reading and programming are done via LCD display and 2 buttons. A reset button allows you to reset without losing stored readings
Absolutely safe: the socket is equipped with increased touch protection and a high load capacity of up to 3,680 W for safety. Indoor use only (IP20)

11,95 €