Updated:03 October 2026
Rank 1-12 of the best Power Meters
Our recommendation Price Customer rating
1. Comparison winner
Digital Electricity Meter 230V with LED, Portable & Waterproof
Digital Electricity Meter 230V with LED, Portable & Waterproof
Available immediately
free shipping
  • use a portable digital electricity meter to monitor the energy consumption of electrical appliances in real time, allowing you to track power use and manage consumption to save energy and reduce electricity bills
  • plug and play operation with 1.5 m high performance rubber hose cables on both sides, and a large LCD screen that clearly displays energy use making readings easy to read and the device simple to operate
Our rating
9,9
very good
Jadeshay Electric Meter 230V 16A
Jadeshay Electric Meter 230V 16A
Available immediately
free shipping
  • real-time display of energy usage for the connected device to monitor power draw
  • estimates cost per kilowatt-hour from current energy usage to help you calculate electricity costs
  • shows total energy used over a period and stores usage history for trend analysis
Our rating
9,8
very good
3. Best value
OWON Bi-Directional Smart WiFi Power Monitor, 80A, 2-Clamp, Single-Phase Energy Meter
OWON Bi-Directional Smart WiFi Power Monitor, 80A, 2-Clamp, Single-Phase Energy Meter
Available immediately
free shipping
  • real-time energy data via a 2.4 GHz wifi connection and mobile app with accuracy of ±2 per cent, recording voltage, current, power factor, active power and frequency
  • records energy consumption hourly, daily and monthly to show total electricity use over time
  • compact and lightweight design with a single power clamp for easy installation by clipping around the power cable
Our rating
9,8
very good
4. Bestseller
SDM230 Modbus RS485 RTU Single-Phase Energy Meter, 100A, DIN Rail Mount, Backlit, MID Certified
SDM230 Modbus RS485 RTU Single-Phase Energy Meter, 100A, DIN Rail Mount, Backlit, MID Certified
Available immediately
free shipping
  • measures real time energy use including active energy, reactive energy, current, voltage, power and frequency for single phase circuits
  • shows cumulative energy usage over time for simple consumption tracking
  • provides straightforward connection to single phase circuits and easy operation
Our rating
9,8
very good
DEWIN 6-in-1 Digital Single-Phase Energy Meter, 40-300V AC, 100A, Colour LCD Display, CT
DEWIN 6-in-1 Digital Single-Phase Energy Meter, 40-300V AC, 100A, Colour LCD Display, CT
Available immediately
free shipping
  • measures voltage, current, power, energy, frequency and power factor in a single display
  • automatic data storage stores the latest energy data when power is cut and continues to accumulate energy data when power is restored
  • easy to install on a universal 35 mm DIN rail without screws and suitable for indoor and outdoor use
Our rating
9,6
very good
Aideepen 6-in-1 AC Panel Meter with Open CT, 80-260V, 100A, LCD Ammeter/Voltmeter
Aideepen 6-in-1 AC Panel Meter with Open CT, 80-260V, 100A, LCD Ammeter/Voltmeter
Available immediately
free shipping
  • six electrical parameters are measured including voltage 80-260 VAC, current 0-100 A, power 0-22000 W, energy usage 0-999 kWh, frequency 45-65 Hz and power factor 0-1
  • cumulative energy monitoring tracks total energy use up to 999 kWh and resets to zero when the limit is reached
  • overload alert lets you set a current power threshold and the display flashes to warn when power exceeds the threshold, stopping when it drops below
Our rating
9,6
very good
2-in-1 USB Voltage & Amp Meter Tester with LCD Display
2-in-1 USB Voltage & Amp Meter Tester with LCD Display
Available immediately
free shipping
  • Energy usage measurement showing charging current, voltage and energy for USB and Type-C devices
  • Overload alarm and safety protection with automatic output cut-off and audible alert
  • Simple connection and operation with an included OTG adapter to expand USB and Micro USB connections and a colour LCD display with language options
Our rating
9,6
very good
50+ purchases last month
Single Phase Electricity Power Meter, DIN Rail Mount
Single Phase Electricity Power Meter, DIN Rail Mount
Available immediately
free shipping
  • measure the real power drawn by the connected load in a single-phase AC system at 50 Hz
  • easy installation on a standard 35 mm DIN rail with direct connection and two wiring options; standard wiring is S-type and U-type wiring is optional
Our rating
9,5
very good
13A Energy Monitor with LCD Display UK Plug
13A Energy Monitor with LCD Display UK Plug
Available immediately
free shipping
  • measures power consumption for accurate energy usage tracking
  • allows cost estimation per kilowatt-hour for better budget management
  • provides cumulative energy monitoring to understand long-term usage
Our rating
8,9
good
Jadeshay 100A Digital LCD Energy Meter, Single-Phase, AC 80–270V, DIN Rail Mount
Jadeshay 100A Digital LCD Energy Meter, Single-Phase, AC 80–270V, DIN Rail Mount
Available immediately
free shipping
  • two displays show measurements; the first shows voltage, current, active power and energy, the second shows frequency, power factor, active power and energy
  • mounts on a 35 millimetre DIN rail without screws for straightforward installation
  • one-click reset keeps readings accurate during testing and monitoring
Our rating
8,8
good
LOWENERGIE UK Plug-in Power Meter with LCD Display
LOWENERGIE UK Plug-in Power Meter with LCD Display
Available immediately
free shipping
  • measures power consumption of household appliances to display usage in watts
  • calculates electricity costs based on your set rate per kilowatt hour
  • monitors cumulative energy usage over time, showing total kilowatt hours used
Our rating
8,8
good
LOWENERGIE Energy Monitor Socket UK
LOWENERGIE Energy Monitor Socket UK
Available immediately
free shipping
  • measure energy consumption of household appliances for efficient usage
  • calculate the cost per kilowatt hour for electricity usage, enabling cost analysis
  • monitor cumulative energy usage and cost over time with internal memory for each appliance
Our rating
8,6
good

Similar Power Meter comparisons

Power Meters buying guide: How to choose the right product from the above Power Meters test or comparison

Understanding Power Meters: What They Are and How They Work

What is a Power Meter?

A power meter is a device that helps cyclists measure their power output while riding, typically expressed in watts. Imagine you’re pedalling up a hill without knowing how hard you’re pushing yourself. A power meter gives you real-time feedback on your performance, enabling you to adjust your effort to maintain or improve your pacing. The device calculates the power exerted by measuring the torque applied to the pedals or crank, which translates to the energy being used during your ride.

How Does a Power Meter Work?

Power meters can be fitted to different components of your bike, including pedals, crank arms, and hubs. Each type uses slightly different technology to gather data. For example, pedal-based power meters can directly measure the force you apply to the pedals, while crank-based systems measure the force at the crank arm. Data collected is then sent to a display device, like a bike computer or smartphone, allowing you to view metrics such as your current, average, and peak power output during rides.

Key Benefits of Using a Power Meter for Training

Track Your Progress Accurately

Using a power meter allows cyclists to monitor their performance with precision. With real-time power measurements, we can gauge our effort level and make necessary adjustments mid-ride. This precision helps us identify strengths and weaknesses, enabling tailored training sessions that enhance our performance over time. Instead of relying on subjective feelings of exertion, we now have concrete data to inform our training.

Optimise Training Sessions

Power meters facilitate structured training by enabling us to set specific power targets. Rather than simply aiming for a certain heart rate or speed, we can plan intervals around wattage, translating directly into relevant training intensity. This can be particularly beneficial for interval training, where pushing yourself to the right power levels is crucial for performance gains. The ability to target precise power zones means our training can be more efficient and effective.

Choosing the Right Power Meter: Essential Features to Consider

Compatibility with Your Bike

When selecting a power meter, we should first assess compatibility with our bike setup. Power meters can come integrated with certain bike components or as standalone devices. It’s essential to check if your bike can accommodate the power meter you’re interested in, so it fits seamlessly into your current configuration.

Accuracy and Consistency

Depending on training goals, accuracy of data becomes a key consideration when choosing a power meter. Many power meters have a stated measurement accuracy, typically around ±1-2%. Higher accuracy means more reliable data, which is crucial for effective training and progress assessments. Don’t hesitate to delve into user reviews focusing on data consistency across various conditions.

Battery Life and Maintenance

Battery life plays a significant role in usability. Some power meters use replaceable batteries, while others are rechargeable and require a power source. If we frequently train, opting for a model with extended battery life ensures we won’t be caught off-guard during important rides. Maintenance is also vital; attention to cleaning and checking connections will prolong the life of your device.

Pedal-Based Options

Pedal-based power meters like the Garmin Vector and the Favero Assioma offer versatility since they can be moved from bike to bike. These options are great for those who appreciate ease of use and consistent measurement during varied conditions.

Crank-Based Choices

Crank-based power meters, such as the Shimano Dura-Ace and SRM Origin, provide high accuracy and are favoured by competitive cyclists. These systems are integrated into the bike’s crankset, offering a robust solution with minimal maintenance.

Hub-Based Systems

Hub-based power meters, like those from PowerTap, offer a unique installation point that combines durability with high reliability. If you’re looking for a less intrusive option that delivers consistent performance, a hub-based model merits consideration.

How to Effectively Use a Power Meter for Optimal Performance

Establish Your Personal Power Zones

To make the most of a power meter, it’s crucial to establish our personal power zones based on a functional threshold power (FTP) test. This involves determining the maximum effort we can sustain for one hour. By doing this, we create tailored training benchmarks that help sharpen our performance.

Integrate Power Data into Training

Incorporating power data into our training routine allows us to ride smarter and not harder. We recommend focusing on specific sessions, such as threshold intervals or endurance rides, tracking how power output aligns with our goals for each workout. Monitoring how we respond to various power targets can guide our recovery and adaptation, leading to long-term improvements.

Analyse Post-Ride Data

After each ride, taking time to analyse the collected power data is crucial. We can review the ride metrics and identify patterns in our performance. This evaluation not only boosts motivation but also helps us refine our future training strategy based on real-world performance rather than guesswork.

Table of contents
  1. Understanding Power Meters: What They Are and How They Work
  2. Key Benefits of Using a Power Meter for Training
  3. Choosing the Right Power Meter: Essential Features to Consider
  4. Popular Power Meter Models Reviewed: Our Top Picks
  5. How to Effectively Use a Power Meter for Optimal Performance

Overview

1. Comparison winner
Digital Electricity Meter 230V with LED, Portable & Waterproof
Our rating
9,9
very good
Digital Electricity Meter 230V with LED, Portable & WaterproofAvailable immediately
Jadeshay Electric Meter 230V 16A
Our rating
9,8
very good
Jadeshay Electric Meter 230V 16AAvailable immediately
3. Best value
OWON Bi-Directional Smart WiFi Power Monitor, 80A, 2-Clamp, Single-Phase Energy Meter
Our rating
9,8
very good
OWON Bi-Directional Smart WiFi Power Monitor, 80A, 2-Clamp, Single-Phase Energy MeterAvailable immediately
4. Bestseller
SDM230 Modbus RS485 RTU Single-Phase Energy Meter, 100A, DIN Rail Mount, Backlit, MID Certified
Our rating
9,8
very good
SDM230 Modbus RS485 RTU Single-Phase Energy Meter, 100A, DIN Rail Mount, Backlit, MID CertifiedAvailable immediately
DEWIN 6-in-1 Digital Single-Phase Energy Meter, 40-300V AC, 100A, Colour LCD Display, CT
Our rating
9,6
very good
DEWIN 6-in-1 Digital Single-Phase Energy Meter, 40-300V AC, 100A, Colour LCD Display, CTAvailable immediately
Aideepen 6-in-1 AC Panel Meter with Open CT, 80-260V, 100A, LCD Ammeter/Voltmeter
Our rating
9,6
very good
Aideepen 6-in-1 AC Panel Meter with Open CT, 80-260V, 100A, LCD Ammeter/VoltmeterAvailable immediately
2-in-1 USB Voltage & Amp Meter Tester with LCD Display
Our rating
9,6
very good
2-in-1 USB Voltage & Amp Meter Tester with LCD DisplayAvailable immediately
Single Phase Electricity Power Meter, DIN Rail Mount
Our rating
9,5
very good
Single Phase Electricity Power Meter, DIN Rail MountAvailable immediately
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