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Kill A Watt Meters

10 Best Kill A Watt Meters 2025 in the United States

#1

Winner

9.7 score

Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display

10%OFF

Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display

MECHEER

9.7 score

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The Upgraded Watt Power Meter Plug by MECHEER is a solid tool for monitoring and managing home electrical usage. It offers various monitoring parameters, including power, energy, volts, amps, and more, which makes it suitable for tracking the consumption of different appliances. The device features an upgraded LCD display with a large screen and adjustable backlight time, ensuring clear visibility under various lighting conditions. The backlight can be set to stay on from 10 minutes to always on, which is convenient for extended monitoring sessions.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Accuracy
Very accurate for home use, tracking all the usual real-time info like volts, watts, amps, and more.
Measurement Range
Handles 15 amp loads without any issue, making it reliable for both home and work environments.
Display
This model is a good successor to the old Kill-A-Watt meters, with a large, bright display and easy controls.
Data Logging
The cumulative power consumption option is great for finding out how much an item uses over a day or a week.
Ease of Use
Some controls and settings are not intuitive and require keeping the instructions handy.
#2
9.4 score

Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing and 35 Inch Cord for Easy Use

Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing and 35 Inch Cord for Easy Use

KILL A WATT

9.4 score

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The Kill A Watt Connect P4498 is a practical electricity usage monitor designed to help users understand their power consumption. Its most notable feature is the 35-inch cord, which allows for flexible placement of the plug while keeping the display easily accessible. This can be particularly useful in hard-to-reach areas, ensuring you can always view your power usage data without hassle. The meter shows a variety of measurements including volts, current, watts, frequency, power factor, and VA, making it comprehensive for detailed energy tracking.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Accuracy
Programming the device with local utility costs for accurate cost estimates is straightforward.
Measurement Range
Perfect for monitoring power consumption of devices like portable ACs and computers.
Display
Magnets on the display unit allow it to stick nicely to metal surfaces, enhancing usability.
Data Logging
The device works perfectly for continuous monitoring of power consumption over extended periods.
Ease of Use
The split monitor/receptacle design is incredibly convenient for easy viewing and operation.
#3
9.2 score

SURAIELEC Watt Meter, Plug-in Socket Power Meter, Auto Cost Calculator, Backlit Large Display, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electricity Usage Electrical Energy Monitor

26%OFF

SURAIELEC Watt Meter, Plug-in Socket Power Meter, Auto Cost Calculator, Backlit Large Display, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electricity Usage Electrical Energy Monitor

SURAIELEC

9.2 score

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The SURAIELEC Watt Meter is a useful tool for monitoring and reducing your energy costs. It's capable of tracking energy usage in real time and automatically calculates the cost based on your electricity rates. This is particularly beneficial for identifying high-energy appliances and making informed decisions to save on your power bill. The large backlit display is a standout feature, making it easy to read the measurements even in low-light conditions. This is convenient for use in basements, garages, or during nighttime hours.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Measurement Range
Inexpensive and effective for measuring kilowatts while charging an electric vehicle and monitoring amperage draw during blackouts.
Display
The backlit display lights up with any button press and stays lit for a while, making it easy to read.
Data Logging
Tracks the total time power is being drawn, though it doesn't show the overall average power use.
Ease of Use
The device is simple to use and provides very clear readings.

Top 10 Best Kill A Watt Meters 2025 in the United States

#1

Winner

9.7 score

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MECHEER

Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display

Measurement Range: power, energy, volts, amps
Display: upgraded LCD, large screen, adjustable backlight
Data Logging: retains data after unplugged
Connectivity: none
Ease of Use: straightforward buttons, clear instructions

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10% OFF

Chosen by 1486 this week

#2

9.4 score

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KILL A WATT

Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing and 35 Inch Cord for Easy Use

Accuracy: +/-0.3%
Measurement Range: volts, current, watts, frequency, power
Display: clear and user-friendly
Ease of Use: simple to operate

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#3

9.2 score

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SURAIELEC

SURAIELEC Watt Meter, Plug-in Socket Power Meter, Auto Cost Calculator, Backlit Large Display, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electricity Usage Electrical Energy Monitor

Accuracy: ±0.1W
Measurement Range: up to 1,950W
Display: large backlit display
Data Logging: 90-day data memory
Ease of Use: compact design

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26% OFF
#4

8.9 score

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P3

P3 Power Meter Kill A Watt 125 V 5-1/8 " Hx2-3/8 " Wx1-5/8 " D

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#5

8.6 score

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BALDR

BALDR U.S. Electricity Usage Monitor for Home - Kilowatt Meter Sockets - Wattage Meter Plug In Appliances to Measure Energy Usage - Home Energy Monitor with Easy to Read Display - Home Power Monitor

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8.3 score

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#7

8.0 score

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BLOSSOMZ

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#8

7.7 score

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WorldBrand

WorldBrand P3 P4460 Kill A Watt(R) EZ Consumer Electronics

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#9

7.4 score

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#10

7.1 score

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P3

P3 P4400 Kill A Watt Electricity Usage Monitor

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28% OFF
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Buying Guide for the Best Kill A Watt Meters

Kill-A-Watt meters are devices used to measure the electricity consumption of appliances and electronics. They help you understand how much energy your devices are using, which can be useful for managing your electricity bills and reducing your carbon footprint. When choosing a Kill-A-Watt meter, it's important to consider several key specifications to ensure you get the right one for your needs.
AccuracyAccuracy refers to how close the meter's readings are to the actual power consumption. This is important because more accurate readings will give you a better understanding of your energy usage. Accuracy is usually expressed as a percentage. For most home users, a meter with an accuracy of within 1-2% is sufficient. If you need very precise measurements, look for meters with higher accuracy.
Measurement RangeThe measurement range indicates the minimum and maximum power levels that the meter can measure. This is important because it determines whether the meter can handle the power levels of your devices. For typical household appliances, a range of 0.1 to 1800 watts is usually sufficient. If you plan to measure high-power devices, ensure the meter can handle higher wattages.
DisplayThe display shows the readings and other information. A clear, easy-to-read display is important for quickly understanding your energy usage. Some meters have backlit displays, which can be useful in low-light conditions. Consider how and where you will use the meter to decide if a backlit display is necessary for you.
Data LoggingData logging allows the meter to record and store energy usage over time. This is useful for tracking long-term energy consumption and identifying trends. Some meters can store data for a few days, while others can store data for several months. If you want to monitor your energy usage over a long period, look for a meter with extensive data logging capabilities.
ConnectivityConnectivity refers to the ability of the meter to connect to other devices, such as smartphones or computers. This can be useful for remotely monitoring your energy usage and analyzing data. Some meters offer Wi-Fi or Bluetooth connectivity. If you prefer to manage your energy data digitally, look for a meter with these connectivity options.
Ease of UseEase of use encompasses how simple the meter is to set up and operate. This is important because a complicated meter can be frustrating and may not be used effectively. Look for meters with straightforward instructions, intuitive controls, and user-friendly interfaces. If you are not very tech-savvy, prioritize meters that are known for their simplicity.

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