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The 8 Best kill a watt meters of 2024

Are you trying to find kill a watt meters among various brands on the market but aren’t sure where to begin? To assist you in finding the right one, we’ve put together a list of the 7 best to help you pick the perfect one!

We investigated and evaluated a number of the top-selling kill a watt meters on the market in order to create our list of the best. Making a decision among the many options available is never simple. There are an infinite number of models available, each with a distinct price. And as you’ll find out, the best options aren’t usually the ones you imagine! This comparison is rich and relevant because of the numerous factors that were employed. You will find products featured in this ranking not only based on their pricing but also on their features and other customers reviews. To write this review, we completed 26 hours of research and did 18 kill a watt meters tests. You won’t need to pick products at random any more. If you’re unsure of what to look for, browse our list and consult the buying guide!

An overview of our top picks

Table of contents

The best kill a watt meters you can buy today

SaleNo. 1
Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display
4,596 Consomer Reviews
Upgraded Watt Power Meter Plug Home Electrical Usage Monitor Consumption, Energy Voltage Amps Kill Tester with Backlight, Overload Protection, 7 Modes Display
  • 【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. 180°full 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.
  • 【100% SATISFACTION】: Our watt meter power analyzer is perfect for monitoring the electricity usage of your home appliances, controlling your power consumption, and saving your money. Your best choice for voltage meter, kilowatt meter, current meter and electricity meter. If you have any concerns with the electrical meter socket you received, you can contact us to get 100% satisfaction.
SaleNo. 2
P3 P4400 Kill A Watt Electricity Usage Monitor
9,430 Consomer Reviews
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
  • English (Publication Language)
No. 3
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
No. 4
WILAWELS Watt Meter, Power Meter, Auto Cost Calculator with Backlight, Kilowatt Wattage, Electricity Usage Monitor, Energy Consumption, Kill a Watt, 7 Modes Display, B01WM05
  • Power Monitor, Money Saver: This power monitor has 7 adjustable modes to comprehensively monitor, current, hertz, minimum/maximum power, accumulated energy usage, and electricity cost, providing you with reliable data at a precision of up to 1.0
  • Large LCD Screen: The home energy monitor comes with a large backlight LCD screen that facilitates easy reading of data even in the dark. Its 180° wide viewing angle allows for a user-friendly presentation of the data. Press any button to activate the screen, and the light effect lasts for 10 seconds
  • 90-Day Data Memory Function: This power meter is equipped with a rechargeable backup battery, allowing for up to 90-day data retention even during an unexpected power outage or unplugging. Press the reset button to set the data to zero and recalculate as needed
  • Compact and Durable: This power consumption monitor is exceptional with its compact design, allowing for effortless use in various settings while providing practical solutions for monitoring electrical appliances. Its shell is made of PC flame-retardant engineering materials, ensuring additional safety
  • Compatible Plug: The watt meter is only compatible with the NEMA 5-15P plug and 5-15R socket. To use with other plugs, an adapter is required. Please note not to connect the power meter to a multi-plug outlet to measure multiple appliances at once to prevent short circuits
SaleNo. 5
Upgraded Watt Meter Power Meter Plug Home Energy Monitor Electricity Usage Monitor, Electrical Usage Monitor, Energy Voltage Amps Meter Tester with Backlight, Overload Protection, 8 Display Modes
  • 【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 durable, 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.
  • 【100% SATISFACTION】: Our electrical meter sockets is ideal for monitoring the electricity usage of your home appliances, controlling your power consumption, and saving your money. Your best choice for voltage meter, wattage meter, current meter and electric meter. If you have any concerns with the power consumption meter you received, you can contact us to get 100% satisfaction.
SaleNo. 6
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
  • 【 Monitoring Electric Usage and Know Cost Intuitively 】 Power consumption meter can measure power (W), volts, amps, frequency, power factor, maximum and minimum power (W), cumulative time and energy (kWh), and calculate cost automatically after price-setting; monitoring home energy usage and help you to save electricity cost
  • 【 Large Clear LCD Display with Backlight 】 Electricity monitor kilowatt meter has a wide view angle and clear-digit display; easy to read and operate the electricity monitor in dark areas with the backlit clear LCD display
  • 【 Long Time Data Hold Memory Function 】 Come with built-in rechargeable battery backup, the watt meter power analyzer can hold data up to 90 days when coming across a power outage or plugging out the meter from the outlet; all data includes the cost setting will go to zero once press the reset button
  • 【 Potable and Takes up 1 Outlet Only 】 Compact size; power meter socket plug leaves the lower wall outlet available when plugging into the upper outlet; made of high-quality fire-resistant material; friendly after-sale customer service and 1-year limited warranty; Note: do not compatible with AC inverter and solar power inverter
  • 【 3680W Overload Indication 】 This power monitor meter can measure 110-130 Vac & 200-240 Vac voltage (Note: Label on watt meter back only shows 110-130 Vac low volt range due to certification requirements); 0-16A AMP; 0-3680W wattage, and indicate overload when load up to 3680W; Class 1.0 accuracy standard with 0.1W, 0.1V, 0.001A and 0.001kWh resolution
No. 7
P3 International P4400-VP Monitor, Electricity Usage, Kill-A-Watt, 8 Measures, 2.4' W x 1.7' D x 5.1' H
266 Consomer Reviews
P3 International P4400-VP Monitor, Electricity Usage, Kill-A-Watt, 8 Measures, 2.4" W x 1.7" D x 5.1" H
  • Forecast your costs
  • Displays volts, amps, watts and Hz
  • Operating voltage: 115VAC
  • Maximum current: 15A
No. 8
P3 International P4456 Kill A Watt Flex Plug-in Electricity Usage + Power Consumption Monitor, Watt Voltage Tester, Electrical Energy Saving Monitor with Auto Cost Calculator
  • Easily measure the cost of an appliance by Day, Week, Month and Year
  • Simple plug in to appliances for electricity usage measurement
  • Easy to read LCD screen shows power consumption and converts to dollar figure automatically.
  • Built-in memory retains measurements
  • Cycles Mode guides you through product features
  • Detect voltage drops and brownout
No. 10
BALDR U.S. Electricity Usage Monitor for Home - Kilowatt Meter Sockets - Watt Meter that Plugs into Appliances to Measure Energy Usage - Home Energy Monitor with Easy to Read Display - Power Monitor
  • SAVE ON YOUR ENERGY BILL: Simply plug the power meter into your electric appliances to see how much electricity they are using. The monitor can measure various things like voltage, wattage, and CO2 usage in real-time. With this information, you can decide whether it's time to replace an old, inefficient appliance with a new, energy-efficient one. DUAL TARIFF model allows you setting two different electricity tariffs at different times, so to calculate your electricity costs more accurately.
  • FUNCTIONAL PROTECTION FROM POWER OVERLOADS: Our energy usage meter features overload protection which will notify you if a unit is drawing more electricity than a circuit can safely handle. Text reading "overload" will blink on the screen of our energy consumption meter to warn you that the appliance needs to be immediately unplugged in order to prevent overheating. Protect your valuable appliance with our energy monitor outlet!
  • EASY TO READ DISPLAY: Our electric meter has an extra large LCD screen with a clear digit display so that you can read the measurement from close or afar alike. Our digital wattage meter continues energy monitoring day and night so that you can make smart and informed decisions that can impact your energy usage.
  • BUILT-IN BATTERY BACKUP: Our energy meter comes with a built-in battery backup feature that will save your electricity usage readings, cost readings, and all settings during the event of a power outage. We include two (2) 3.6V batteries with our energy monitoring outlet so that this function is ready to use right out of the box.
  • EFFORTLESS TO RESET: The option to quickly, easily, and conveniently reset our energy usage monitor is available in the unlikely event that the buttons stop responding or the display appears abnormal. Just by pressing the small "reset" button located between the "energy" and "cost" buttons, you can reset our energy measurement device. It's that easy!
No. 11
Poniie PN2000 Plug-in Kilowatt Electricity Usage Monitor Electrical Power Consumption Watt Meter Tester w/Extension Cord
  • 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 and comes with 14AWG heavy duty extension cord
No. 12
P3 International P4460 Kill A Watt EZ Electricity Usage Monitor (Pack 2)
  • Calculates cost and forecasts by week, month, and year
SaleNo. 13
Poniie PN1500 Portable Micro Electricity Usage Monitor Electrical Power Consumption Watt Meter Voltage Amp Tester (110V, 1500W))
  • EASY TO USE: Counts consumption by Kilowatt-hours, choosing from 5 independent keys to quick access different power parameters
  • REFINED ACCURACY: Built-in high precision current sensor. Ensures you the best accuracy-Class 1.0 with 0.01W, 0.1V and 0.01A resolution
  • BACK-LIGHT & MEMORY: Clear backlight and large digital numbers, with circuit memory for cumulative kilowatt-hours & elapsing time
  • PORTABLE KILOWATT METER: Compact size with start detection 0.20W, you can virtually monitor most standby or working power dissipation
  • BUY WITH CONFIDENCE: 1-YEAR Warranty by Poniie; Full ABS fire retardant material housing; Note: do not compatible with solar power inverter
No. 14
P3 International P4460 Kill A Watt EZ Electricity Usage Monitor (Pack 1)
  • Calculate your homes cumulative electrical expenses and forecast by the day, week, month, even an entire year. Also check the quality of your power by monitoring Voltage, Line Frequency, and Power Factor. Now you’ll know if it is time for a new refrigerator or if that old air conditioner is still saving you money.
  • With the P4460 you can easily identify which appliance in your home is costing you the most money. The Power Monitor also allows you to enter your Utility providers cost of electricity so you can monitor and pinpoint what each appliance is costing you.
  • The cost of electricity is soaring but you can help reduce your energy costs with the new Kill A Watt EZ. Simply plug it into a wall socket and then plug in your appliance to assess how efficient they really are. The large LCD will display the power consumption by the kilowatt-hour and the built-in memory retains accumulated readings when power is interrupted. Program in your local utility rate and display projected costs by hour, day, week, month, or year.
  • Built-in backup of accumulated information. Calculates cost and forecasts by week, month and year
  • Voltage Range: 115 VAC; Includes: OPERATING VOLTAGE: 115 VAC MAX VOLTAGE: 125 VAC MAX CURRENT: 15 AMPS DIMENSIONS: 5-1/8 H X 2-3/8 W X 1-5/8 D Operating; Item: Electricity Usage Monitor.Displays eight critical units of measure on the large LCD display.Accurate within 0.2%
No. 15
HBN LCD Watt Meter Plug with Backlight, Plug-in Socket Power Meter Electricity Usage Monitor Consumption Home Electrical Energy Monitor, Voltage Amps Wattage Electricity Usage Tester, 9 Display Modes
  • 【Backlit LCD Display】: The watt meter is upgraded with a backlit LCD display and a 160° wide viewing angle, allowing clear, distinct reading and recording of data from any angle, day or night. (Note: To save electricity, the backlight will turn off after being on continuously for 15 seconds.)
  • 【9 Types of Data Display】This energy meter plug can accurately monitor various electrical parameters, including power watts (W), power volt-amperes (VA), energy consumption (KWH), usage time (Hour), power frequency (Hz), power factor (PF), voltage volts (Volt), current amperes (Amp), and electricity cost (Cost). The interface is simple and clean, making it easy to read 9 types of data with just a button.
  • 【Save Money and Energy】By switching among 9 display modes, you can easily understand various parameters while your device is operating. The home energy monitor can also calculate and display how much electricity your appliances have used and how much they have cost over time. Save on your electricity bills by monitoring and controlling energy use.
  • 【Data Storage】Our plug-in electricity meter can store all non-real-time data, so there’s no need to worry about information loss in case of a sudden power outage. When data exceeds the maximum display range of the screen, the screen will flash as a reminder. After pressing and holding the reset button for 3 seconds, the cumulative data will be reset 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.
No. 16
kuman KW47-US Electricity Usage Monitor Plug Power Watt Voltage Amps Meter with Digital LCD, Overload Protection and 7 Display Modes for Energy Saving (NO-Backlight), White
  • Electricity usage monitor: Monitor is the killer of the high-cost energy appliance, helping you lower power consumption and save money.
  • Digital LCD Display: Large clear LCD display for easy reading, the screen size is 47cmx60cm.
  • Various Parameters: Power(W), Energy (kWh), Voltage, Amps, Power Factor, Cost and Minimum & Maximum Power, ideal for energy consumption monitor.
  • Overload Protection: Once the whole power exceeds the rated power of monitor, LCD will display "OVERLOAD" with booming noise to remind the user
  • Built-in Battery:With 3.6V rechargeable battery(NI-MH), It can store electricity. which allows meter to be moved and viewed without losing readings.
SaleNo. 17
P3 International P4460 Kill A Watt Ez Energy Monitor
  • Shows the operating costs of your household appliances
  • Accurate to within 0.2%
  • Large LCD display
  • Calculates cost and forecasts by week, month and year
  • Built-in battery backup
No. 18
AC WiFi Watt Meter, Plug-in US Socket Power Meter, Backlit Large Color Display, Overload Protection, Kilowatt Wattage Voltage AMP Tester, Electrical Energy Monitor,Delay to restore power supply, Timer
  • 【Screen Type】2.4inch TFT-LCD HD Display Panel Graphic 240´RGB´320 Dot-matrix Large screen measurement digital display function
  • 【WIFI connection】Date function: month/day tuya app or smart life app, just say what you want to do and it will happen right away.
  • 【Product function】1.Remote control 2.Timer function Socket 3.Countdown function
  • 【Protection function】1.Over current Protection 2.Over voltage protection 3.Over Power protection
  • 【Electricity bill setting】Set the electricity unit price function/accumulate electricity bills
No. 19
KETOTEK Watt Meter Power Meter Plug Electricity Usage Monitor for Home, Energy Monitor with LCD Display, Kilowatt Meter Socket Outlet, Voltage Amps Power Consumption Meter, Overload Protection
  • 【One-click switching interface】Choosing from 5 button to quick access different parameters. Press M to display KWH and electricity cost. Press + to display Watt (active power) and VA (apparent Power). Press OK to display true RMS voltage Vrms and true RMS current Arms. Press - to display Hz ( frequency) and PF (power factor). Press ↺ to display the maximum and minimum power. Press OK for 3s to display the complete accumulated time.
  • 【Monitor home appliances】Insert the watt meter between the appliance and the power outlet. This energy meter will measure the power consumption of the appliance and automatically calculate the electricity bill, only being calculated if the appliance is running at a power greater than 2 watts. Suitable for computers, games consoles, printers, TVs, refrigerators, washing machines, dryers, routers, etc.
  • 【Multiple protection】When the load power exceed the overload setting value, power consumption exceed KWH alarm setting value, electricity cost exceed cost alarm setting value, LCD displays "Overload", "KWh ALARM" or "COST ALARM" and LED light flashes continuously to warn user. The default overload power is 3680W ( 0~3680W adjustable ). In general, you need to set the overload power to 1800W before using. Ideal for monitoring the energy consumption of household appliances.
  • 【Data storage】The power consumption monitor plug has a built-in high-precision chip that stores data in the event of a power failure. It has a reset function and a function to delete measurement data but retain setting parameters for switching between multiple appliances. It can effectively monitor the electricity consumption, reduce electricity bills and save energy.
  • 【Upgraded LCD display】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, especially if the energy meter is not at eye level, or is only viewable from an angle.

How to choose a good kill a watt meters

Does the idea of finding a fantastic kill a watt meters make you anxious? When it comes to purchasing this product, specifically when deciding which model to select, has your head been spinning between options? You are not alone if that is the case. We are aware of the pressure involved in the purchasing process!

Your presence here indicates that you are interested in kill a watt meters. Before choosing which product would be the best for your needs after being inundated with information, locate a reliable source with genuine selections. You can get that information from a variety of sources, including buying guides and rating websites, word-of-mouth recommendations from friends and family, online discussion forums where users can share their own experiences, product reviews that can be found all over the internet, and YouTube channels. You can only get the right product through exhaustive analysis. But you realize that’s not always simple. In order to ease your concerns, we have taken the time to develop a list of the top kill a watt meters products available right now. You might be wondering how we came up with the list. How was this buying guide developed?

First, we used our algorithms to gather as much reliable data as we could about these products. To verify all the data gathered, we used both artificial intelligence and a lot of algorithms.
Then, our experts used criteria that are recognized in the business to evaluate them according to their quality to price ratio, allowing us to choose the top kill a watt meters on the market right now!

The selection of the goods is not arbitrary. Before creating a list, we take into account a number of factors. Below are some of the criteria discussed:

Brand Value: What happens if you choose a dubious brand just because it appears to be a good deal? So the likelihood of receiving a product with a short shelf life increases. That is due to the fact that well-known brands have a reputation to uphold, while others do not. Top kill a watt meters brands strive to provide some distinctive traits that set them apart from the competition. So, hopefully one or more of the items on our list will be perfect for you.

Features: Useful features are all you need, not tons of them. We consider the important aspects and select the top kill a watt meters based on those.

Specifications: Numbers always help you measure the quality of a product in a quantitative way. We try to find products with higher specifications, but with the right balance.

Quality: A product’s quality may always be quantified with the aid of numbers. We look for goods with better standards that strike the proper balance. The best quality product that gets highly appreciated and recommended by experienced users.

Customer ratings:  Would it be accurate to suggest that the kill a watt meters were used by hundreds of customers before you? Superior ratings indicate that many customers had better service.

Customer Reviews: Like ratings,  provide you with accurate and reliable information about the product from genuine customers. Customer ratings are very important to all of us because they contain accurate and reliable information about the customer service we received from several hundred customers.

Seller Rank: This is very intriguing! Not only do you need a good kill a watt meters, you also need a product with rising sales that is trendy. It accomplishes two goals. First, the expanding user base proves the quality of the product. Second, given that number, producers must be able to offer greater quality and after-sales support.

Value: You get what you pay for, they say, so consider the value. Cheap isn’t always good and expensive isn’t always bad. However, that does not imply that spending a lot of money on a product that is flashy but underwhelming is a good idea. Before adding them to the list, we make an effort to evaluate how much value you can get for your money from your kill a watt meters.

Durability: Durability and reliability are closely related concepts. You will benefit from a strong and long-lasting kill a watt meters for months and years to come.

Product availability: Products come and go, and new ones replace the old ones. Most likely, a few new features and required changes were made. What use is it to use a supposedly good product if the maker no longer supports it? We make an effort to highlight products that are current and offered by one or more trustworthy sellers, if not more.

Negative Reviews: Yes, we do take that into account as well! The goods with the majority of bad reviews are filtered out and disregarded when we choose the best-rated one on the market.

These are the standards by which we selected our kill a watt meters. Do we end our process there? Hell no. The most crucial fact about us that you should be aware of is that we regularly update our website with current and pertinent information. We have one more layer of filtration since we place the greatest importance on reader satisfaction. Please let us know if any product included here is incorrect, irrelevant, subpar, or simply out of date. We always value your opinions, and we’ll work hard to make any necessary corrections to our list in response to them.

Why should you believe us?

There are now thousands of possibilities for these products on Amazon, but choosing the best one can be difficult and time-consuming. And what kill a watt meters should you purchase in 2022?

This guide is the result of more than 10 years of experience in researching, testing and writing about many topics. Each member of our team is an authority in their area. We read every article we could find online and every consumer review on every retail website for seven hours. Additionally, we discovered a ton of websites that offered helpful resources, including buying tips and thorough information on kill a watt meters.