Best Kill A Watt Meter

Peter | 25-08-2025

With numerous Best Kill A Watt Meter brands to select from – including big names like MECHEER,KILL A WATT,P3 – picking the right product can feel overwhelming. But we’re here to simplify your search for the perfect Best Kill A Watt Meter.

We thoroughly tested and evaluated a wide range of top Best Kill A Watt Meter contenders to help you navigate the crowded market. Our stand-out favorite is MECHEER Best Kill A Watt Meter for its unparalleled quality and top-tier features. Below you’ll discover more of our top-rated Best Kill A Watt Meter picks currently available.

Make sure to consult our buying guide too for valuable insights on choosing the ideal product for your needs. It covers all the key factors when shopping for a Best Kill A Watt Meter. With our research backing your decision, you can confidently invest in a Best Kill A Watt Meter you’ll truly love.

Editor's Choice
Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill
Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill
Premium Pick
Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing
Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing
Budget Pick
P3 P4400 Kill A Watt Electricity Usage Monitor
P3 P4400 Kill A Watt Electricity Usage Monitor

Top 10 Best Kill A Watt Meter

We researched and compared the top products in the Best Kill A Watt Meter category to provide you with these recommendations.

1. Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill

Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill
9.8

Mecheer

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  • Various Monitoring Parameters: The power meter plug can monitor the power (W), energy (kWh), volts, amps, hertz, power factor, cost, minimum and maximum power (W), cumulative days and time of your appliances. By switching 7 display modes, you can easily know the various parameters while the appliance is working. The home energy monitor can also calculate and display how much power your appliance uses and how much electricity bill it cost in cumulative time.
  • Upgraded LCD display: With large screen size 2.36 inch x 1.85 inch, clearer monitor backlit, our electrical usage monitor can display the data clearer and more visible no matter day or night. 180full wide viewing angles is great for reading and recording the data in any angles. No need to stand on the front of the display and bend over to read the numbers.
  • Adjustable Backlight Time: Our upgraded watt meter has 5 options of backlight time. The default backlight time duration is 10 minutes(bL-0). If you want to change the backlight time, you can press and hold "UP" and "DOWN" button at the same time to enter backlight time setting, 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 on), finally press the "COST" to save the backlight time settings.
  • Overload protection: When the power of the appliance exceeds the overload power, the LCD will display OVERLOAD to warn the user. All the buttons will quit working and can only be workable when you lower or remove the load power. The default overload power is 3680W and is adjustable from 0 to 3680W. In general, you need to set the overload power to 1800W before using. Just press the "function" button for more than 3 seconds to enter the setting.
  • Data Memory Function: The wattage meter will record your power consumption data when you remove it from socket, or remove appliances from the electricity monitor. You can directly see the last data when you use it next time. This function can also automatically save the data when there is a sudden power failure.
  • Monitor Your Energy UsageOur watt meter power analyzer lets you track electricity consumption and manage power usage to help save on bills. It works as a voltage, kilowatt, current, and electricity meter. If you have any questions about your meter socket, feel free to contact us.

2. Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing

Kill A Watt Connect P4498 Electricity Usage Monitor Power Consumption Meter with Two Piece Housing
9.5

Kill A Watt

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  • 35 inch cable allows you to place plug in out of the way places while the display remains easy to read
  • See the cost of an appliance by HOUR DAY WEEK MONTH YEAR
  • Displays the following measurements Volts Current Watts Frequency Power Factor VA
  • Measurements are retained in memory during power interruptions
  • Accurate and easy to use

3. P3 P4400 Kill A Watt Electricity Usage Monitor

  • Choose from the Kill-a-Watt's four settings to monitor your electrical usage
  • Monitor your electrical usage by day, week, month, or year
  • Features easy-to-read screen
  • Electricity usage monitor connects to appliances and assesses efficiency
  • Large LCD display counts consumption by the kilowatt-hour
  • Calculates electricity expenses by the day, week, month, or year
  • Displays volts, amps, and wattage within 0.2 - 2.0percent accuracy
  • Compatible with inverters; designed for use with AC 115-volt appliances

4. Upgraded Watt Meter Power Meter Plug Home Energy Monitor Electricity Usage Monitor, Electrical Usage

Upgraded Watt Meter Power Meter Plug Home Energy Monitor Electricity Usage Monitor, Electrical Usage
8.9

Mecheer

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  • Multi-function power monitor: Our electric usage monitor can monitor the power (W), electricity(kWh), voltage(V), frequency(Hz), current(A), power factor(PF), unit price($/kWh), total cost($) of your appliances. By switching 8 display modes, you can easily know the various parameters while the appliance is working. The electricity mode can calculate and display how much power your appliance uses. And the total cost mode will show how much electricity bill it cost in cumulative time.
  • Overload protection: When the loading power of the appliance is over the default overload threshold 1800W, the whole display with backlight and the word OVERLOAD will keep flashing to warn the users. Please turn off the appliance for safety concern.
  • Premium Material: The whole body of our energy meter is made of high-quality ABS material. It makes our home electricity usage monitor more long lasting, fireproof and anti-drop. The standard US socket and plug is suitable for all US standard appliances.
  • Backlight Display: With white backlight and black words, the LCD display of our home power monitor can display the data clearer and help you to read the data easier no matter day or night. The backlight will only lights up when the device is connected to AC power. If no button is pressed, the backlight turns off automatically after 10 minutes. You can also press the "UP" button to turn off the backlight manually, and press any button to turn on backlight again.
  • Easy to reset: No reset tool needed, our appliance power usage meter is easy to reset. You can press the M button for 5 seconds directly to reset the device. After reset, all cumulative data (electricity quantity, cost) will be cleared, and all settings will be restored to factory settings
  • Data Memory Function: The watt meter plug in will record your power consumption data when you remove it from socket, or remove appliances from the electricity monitor. All setting data and cumulative data(electricity quantity, cost, unit price) will be saved. You can directly see the last data when you use it next time(NOT including current, voltage, power, power factors). This function can also automatically save the data when there is a sudden power failure.

5. P3 International P4460 Kill A Watt EZ Electricity Usage Monitor , grey

  • Calculates cost and forecasts by week, month, and year
  • Displays eight critical units of measure on the large LCD display
  • Built-in backup of accumulated information.
  • Accurate within 0.2%
  • Calculates cost and forecasts by week, month and year

6. Upgraded Watt Meter, Watt Usage Meter Plug Home Energy Monitor Consumption, Electricity Usage

Upgraded Watt Meter, Watt Usage Meter Plug Home Energy Monitor Consumption, Electricity Usage
8.5

Mecheer

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  • Various Monitoring Parameters: The power meter plug can monitor the power (W), energy (kWh), volts, amps, hertz, power factor, cost,minimum and maximum power (W), cumulative days and time of your appliances. By switching 8 display modes, you can easily know the various parameters while the appliance is working. The wattage meter can also calculate and display how much power your appliance uses and how much electricity bill it cost in cumulative time.
  • Premium Material: The whole body of our power monitor is made of high-quality PC material. It makes our home power consumption monitor more long lasting, heat resistant and fall resistant. The standard US socket and plug is suitable for all US standard appliances.
  • Overload Protection: When the power of the appliance exceeds the overload power, the word "OVERLOAD" and the LCD display will keep flashing, the buzzer will keep making a bi sound to warn the users. All the buttons will quit working and can only work again when the overload alarm has been cleared by raising the setting value or removing the appliance. The default overload power is 3680W and is adjustable from 0 to 3680W. In general, you need to set the overload power to 1800W before using. Just press the "MODE" button for more than 3 seconds to enter the setting.
  • KWH Alarm: Our power monitor plug has a upgraded power consumption alarm function. You can set the alarm power consumption for the appliances you monitored. Once the accumulated power consumption reaches the set alarm power consumption, the word "kwh alarm" will be displayed and keep flashing, the LCD will also keep flashing, and the buzzer will keep making a bi sound all the time to warn the users.
  • Data Memory Function: The watt meter plug in will record your power consumption data when you remove energy meter from socket, or remove appliances from the electricity monitor. All setting data and cumulative data(electricity quantity, cost, unit price, time) will be saved. You can directly see the last data when you use the electric usage meter plug next time(NOT including current, voltage, power, power factors). This function can also automatically save the data when there is a sudden power failure.
  • Backlight Display: With white backlight and black words, the LCD display of our wattage meter plug in can display the data clearer and help you to read the data easier no matter day or night. The backlight will only lights up when the device is connected to AC power. If no button is pressed, the backlight turns off automatically after 10 minutes. You can also press the "DOWN" button to turn on and off the backlight manually.
  • Adjustable Backlight Time: Our power usage meter also has 5 options of backlight time. The default backlight time duration is 10 minutes(bL-0). If you want to change the backlight time, you can press and hold "UP" and "DOWN" button at the same time to enter backlight time setting, 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=normally on), finally press the "SET" to save the backlight time settings.
  • Monitor Your Energy Usage: Our watt meter power analyzer lets you track electricity consumption and manage power usage to help save on bills. It works as a voltage, kilowatt, current, and electricity meter. If you have any questions about your meter socket, please feel free to contact us.

7. TP-Link 𝗧𝗮𝗽𝗼 Smart Plug Wi-Fi Mini, Energy Monitoring, Compatible with Alexa & Google

  • Insightful Energy TrackingTrack your plug's energy use with clear and easy-to-understand statistics and intuitive charts, helping you optimize power usage.
  • Estimate Your Energy Bill Enhance energy management by integrating with billing systems for clear cost visualization (both single and periodic readings). Additionally, programmable scheduling allows automatic operation of high-consumption devices during off-peak hours with lower electricity rates, resulting in cost savings.
  • Smart Charging for DevicesAutomatically cuts power once your device reaches the low-battery limit you set, preventing overcharging.
  • Auto-ShutoffPrevents electrical overload by automatically shutting off devices that use too much power.
  • Voice & Remote Control With built-in support for both Alexa and Google Assistant, issue simple voice commands to adjust settings, turn devices on or off, or even access specific functions without lifting a finger. Manage Tapo P115 and its connected devices from anywhere with the user-friendly Tapo app.

8. Poniie PN2000 Plug-in Kilowatt Electricity Usage Monitor Electrical Power Consumption Watt Meter

  • HIGH POWER WATT METER: Counts consumption by Kilowatt-hours, with high-power tolerance rated at Max.16A, compatible with 220v ac
  • REFINED ACCURACY: Built-in high precision current sensor. Ensures you the best accuracy-Class 1.0 with 0.01W, 0.01V and 0.001A resolution
  • BACK-LIGHT & MEMORY: With wide view angle, clear backlight large LCD Display and hold over circuit memory for cumulative kilowatt-hours
  • PROFESSIONAL KILOWATT METER: Start detection 0.20W, you can virtually monitor standby or working power dissipation of all your electronics
  • BUY WITH CONFIDENCE: 1-YEAR Warranty by Poniie; full ABS fire retardant material housing

9. HBN Watt Meter Plug with Backlight, Plug-in Socket Power Meter Electricity Usage Monitor Consumption

  • Backlit LCD Display: The watt meter features an upgraded backlit LCD display with a 160 wide viewing angle, providing clear and distinct data readings from any angle, day or night. (Note: To conserve energy, the backlight will automatically turn off after 15 seconds of continuous use.)
  • 9 Types of Data Display: This energy meter plug accurately monitors a wide range of electrical parameters, including power (W), apparent power (VA), energy consumption (kWh), usage time (hours), power frequency (Hz), power factor (PF), voltage (V), current (A), and electricity cost. The user-friendly interface allows you to easily read and navigate through 9 types of data with a single button.
  • Save Money and Energy: By toggling through the 9 display modes, you can gain insights into various operational parameters of your devices. The home energy monitor also calculates and displays the electricity consumption and cost over time, helping you save on your electricity bills by monitoring and managing energy usage.
  • Data Storage: The plug-in electricity meter stores all non-real-time data, ensuring no information is lost in the event of a sudden power outage. If data exceeds the screens maximum display range, the screen will flash as a reminder. Pressing and holding the reset button for 3 seconds will reset the cumulative data to zero.
  • Safe to Use: Rated voltage 125VAC, 60Hz, 15A maximum 1875W resistor and tungsten wire, 1/2HP. Clean and tidy interface, very simple to use.

10. P3 International P4400-VP Monitor, Electricity Usage, Kill-A-Watt, 8 Measures, 2.4" W x 1.7" D x

  • Forecast your costs
  • Displays volts, amps, watts and Hz
  • Operating voltage: 115VAC
  • Maximum current: 15A

Peter

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