The 10 Best Kill A Watt Energy monitors (2023 reviews)

We consider a kill a watt energy monitor to be a worthy investment in the long run. We are here to help you choose the right one for your needs from all the best available products in market today.

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Our Top Picks:

Best Overall: Buy: P3 KWH Meter READ REVIEW

Best For PC: Buy: Poniie Kill A Watt Energy Monitor READ REVIEW

Best For kilowatt Meter: Buy: Mecheer Kill A Watt Energy Monitor READ REVIEW

Best For The home: Buy: BALDR Kill A Watt Energy Monitor READ REVIEW

Best For showing Energy Consumption of devices: Buy: Fayleeko Kill A Watt Energy Monitor READ REVIEW

Best For anything: Buy: Fayleeko bottom outlet READ REVIEW

Best For monitoring The Energy Consumption of household appliances: Buy: KETOTEK Kill A Watt Energy Monitor READ REVIEW

Best For balancing grow light intensities: Buy: HBN Kill A Watt Energy Monitor READ REVIEW

Best With disconnect: Buy: Pilipane Kill A Watt Energy Monitor READ REVIEW

Best Energy efficiency: Buy: P3 Kill A Watt Energy Monitor READ REVIEW

Best Overall: P3 KWH Meter

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The p3 kwh meter is capable of outshining several other monitor featured in this list in overall features. It's fun to know how much electricity your beer fridge uses. It comes with the p3 p4400 you can cut your energy costs and find out what appliances are actually worth keeping plugged in by finding power-wasting appliances. The device will quickly identify high energy using appliances and devices and actually calculate exact costs to run equipment for a specific time period.

The Electricity usage monitor connects to appliances and assesses efficiency. It is easy to read with a large LCD screen. The other model has a reset button and stores the Wh counter. It is great for those who want to monitor the power use of normal everyday household items.

• Monitors energy usage of various appliances very well
• Excellent product, a must have piece of equipment for portable solar systems
• Integrates kwhrs well for small draw devices

Best For PC: Poniie Kill A Watt Energy Monitor

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The poniie kill a watt energy monitor is the best reliable monitor on the market today. The measured power consumption of various devices to power during a power outage enables calculation of backup capacity required to maintain operation after the UPS performs its initial function. It is perfect for measuring many types of appliances. It is essential for measuring the watt-hour (Wh) capacity of the various battery power sources and the actual power consumption of the various devices to be backed up.

This device measures amps flowing through which is directly relatd to what ever is connected. It is a drain if left on all the time because the heater keeps coming on to keep the water ready for brewing. It is backlit to make it easy to read. The Kilowatt is simpler and has a separate button for each function.

• Essential tool for backup system design and operation
• Great tool for checking current draw
• Useful device for measuring the energy consumption consume by appliances
• Easy to use and helpful power measuring tool

Best For kilowatt Meter: Mecheer Kill A Watt Energy Monitor

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate monitor. The mecheer kill a watt energy monitor is exactly that - it's a simple monitor that hits all the right notes. These meters are a great item to get your energy consumptions. It is super easy to learn all the features because it is intuitive and simple. It will tell the min and max current, for a given period of time. The display is nice and bright with large easy to read digits. The loose noise is the plastic sheet of the display sliding in its molding. It is possible to make the back light constant.

It can also be used to calculate electricity bills. These meters are more intended for leaving plugged in long enough to get the readings, and the meter will calculate your averages and costs.

• Easy to use & great for comparing small appliances
• Push function and up buttons simultaneously to clear the data it has collected
• Great tool for measuring power draw on ups
• Works great, blue screen light is bright and easily visible

Best For The home: BALDR Kill A Watt Energy Monitor

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If you want nothing less than best desirable monitor, then baldr kill a watt energy monitor is the one you should definitely consider. If you are looking for a kill-a-watt device, this one will likely fulfill your needs. It works well for monitoring small generator output. The unit definitely stores cumulative kilowatt-hours, and instantaneous current. This monitor is easy to read. It has battery backup, an overload warning, and is so very convenient. It has built-in battery backup, it will save your electricity usage readings, cost readings, and all settings in case of a power outage.

If you want to learn about energy efficiency, and your energy footprint, this is the perfect device because all the different modes, features, and measurements it gives you.

• Useful tool to monitor electric consumption
• Great for balancing your power on different breakers so you don't pop them
• 120 volt outlet with a standard plug
• Works well, a bit hard to read with no backlight

Best For showing Energy Consumption of devices: Fayleeko Kill A Watt Energy Monitor

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Not everyone likes to purchase monitor for their regular usage, but the fayleeko kill a watt energy monitor would be an anomoly. It is good to know your energy hogs. It can be used in a science class as a very inexpensive power meter. The power consumption monitor with a large clear backlit lcd display, full wide view clear visible, make it easy to read and record the data, especially in the darkness. The housing around the plug is small enough that it doesn't block the second outlet on the receptacle.

The LED is bright and the controls are simple to use if you can push a button. It can be used as well as volts and amps. The reset button is dark blue plastic. If you wanna track a bunch of stuff in the house one after another, this might come in handy.

• Lower watt loads below 100 are also accurate
• Lot of satisfied buyers

Best For anything: Fayleeko bottom outlet

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Fayleeko is known for creating pragmatic and minimalist monitor for people on the go, and its line of fayleeko bottom outlet definitely falls in line with that reputation. The Power Meter is a monitoring and testing instrument which determines the power consumption of a connected appliance and the cost of the electricity consumed. It is used to verify power consumption of a 4 hour gig with a 3 piece band. The power consumption monitor with a large clear backlit LCD display, full wide view clear visible, makes it easy to read and record the data, especially in the darkness. It doesn’t block the bottom outlet from a normal size plug. The light needs to stay on longer and it works good and helps save money.

If you have a whole house generator this is very important because it will display voltage and frequency which can ruin refrigerators and AC units. It is easy to configure and easy to reset after your task is complete. It has built in back up battery.

• Easy to set up and use
• Lot of satisfied buyers

Best For monitoring The Energy Consumption of household appliances: KETOTEK Kill A Watt Energy Monitor

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Best part: ketotek kill a watt energy monitor costs comparatively low and it is available to ship in 24 hours. This electricity consumption meter has a built-in high precision chip that will automatically save data after a power failure. It can effectively monitor the electricity consumption, reduce electricity bills and save energy. The internal power supply of this item supports both 110V and 240V. It 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.

The rated power of your device is smaller than 2 watts. It is great for reading and recording the data in any angles. The Time display doesn't progress all the time if there is a low or no load, so it doesn't really tell you how many KWH per day if the load(s) are not continuous.

• Parameter settings, accumulated electricity consumption and time are saved at all times
• Precision chip that stores data in the event of a power failure
• Overload alarm, kwh alarm, cost alarm

Best For balancing grow light intensities: HBN Kill A Watt Energy Monitor

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If you are currently in the market looking for a suitable monitor for your daily usage, hbn kill a watt energy monitor is the natural choice. This little device is able to pinpoint the low efficiency troublemakers. They need to better the design by adding a backlight and making the screen larger and maybe tilt the screen angle upward so easier to see when you're standing up. Buttons on the plug can show cost (after you tell it the cost per KWh), watts, power factor, theoretical power, KWh, frequency, voltage, and current draw.

This device can inform the most cost-saving use of your devices and whether they should remain plugged-in when not in use. It powers up when it’s plug in. There are many display modes, for each you have a separate button. It can also show elapsed time if you want to know how long an appliance has been drawing power. This is a very handy device though, constantly will tell you at a moment glance whether your watts etc are in the range.

• Well made, intuitive operation, comparable to better-known brand, very good value
• Useful for measuring loads for a generator
• Useful for finding “vampire” power devices

Best With disconnect: Pilipane Kill A Watt Energy Monitor

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Next on the list, we've got yet another monitor that manages to win our hearts. It's the pilipane kill a watt energy monitor and it's widely considered as one of the best convenient monitor you can buy. The whole power exceeds the rated power of 1650w of monitor, and LCD will display " overload " with booming noise to warn the user, and automatically disconnect the power screen white. The backlight will light immediately when connecting to AC power, and automatically turn off in 10 minutes if not press any buttons.

• Easy for reading and recording data
• Automatically save your consumption data when there was a power failure
• Clear visible reading in day and night
• Automatically save your consumption data when you remove the plug or appliances

Best Energy efficiency: P3 Kill A Watt Energy Monitor

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P3 line of monitor come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. It is good to measure appliance power usage. It is designed to allow operation with the nsc800 and ins8080a derivative control bus with tri-state output latches directly driving the data bus. It has a'sweet spot, a range of voltages and amperages where it is most accurate. It will give you a kilo watt per hour reading.

This device makes it easy to monitor power usage. It does not have a backlight or any form of on board illumination. The user interface is very basic but has every feature you could want in one of these devices. It is an excellent tool to see how you are using electric energy.

• Awesome accuracy and easy to use
• Easy to use, just plug it in and read the numbers
• A cost effective device for green energy installations
• Displays volts, amps, watts and hz