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Digital Power Monitor Meter Usage Energy Watt Amp Volt KWh Electricity

4.4 4.4 out of 5 stars 1,479 ratings
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Amazon's Choice in Voltage Testers by Sold_By_Cheapnwork

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Purchase options and add-ons

  • Effortlessly Track Power Consumption and Understand Costs: The power consumption meter is equipped to measure various parameters such as power (W), volts, amps, frequency, power factor, maximum and minimum power (W), cumulative time and energy (kWh). Additionally, it automatically calculates costs based on user-set prices. This device facilitates the monitoring of home energy usage, providing valuable insights to help you effectively manage and reduce electricity costs.
  • Digital LCD Display with Generous Dimensions: The device features a large and clear LCD display, ensuring easy readability. The screen boasts a size of 47cmx60cm, enhancing visibility and user convenience.
  • Overload Protection Alert: In the event that the overall power surpasses the monitor's rated capacity, the LCD screen will promptly display an "OVERLOAD" warning accompanied by an audible alarm to alert the user.
  • Integrated Rechargeable Battery: The device is equipped with a 3.6V rechargeable battery (NI-MH), enabling it to store electricity. This feature allows the meter to be easily relocated and viewed without the risk of losing readings. Low power consumption.
  • Memory Function: The electricity usage monitor is equipped with an integrated high-precision chip, enabling automatic data preservation in the event of a power failure. Data is stored permanently, and a single-key reset option is available to efficiently delete all stored information.

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 6.69 x 3.27 x 3.03 inches; 7.37 ounces
  • Date First Available ‏ : ‎ December 19, 2018
  • Manufacturer ‏ : ‎ ZHENGZHOU PAIJI TECHNOLOGY
  • ASIN ‏ : ‎ B07M8JKLG5
  • Customer Reviews:
    4.4 4.4 out of 5 stars 1,479 ratings

Product Description

Specifications: Operating Voltage: AC 120V Operating Frequency: 60Hz Wide Voltage Range: 110V-130V Operating Current: 15A Max Wattage Display Range: 0W-9999W Voltage Display Range: 0V-9999V Frequency Display Range: 0Hz-9999Hz Current Display Range: 0.0A-15.0A Cost Display Range: 0.00 cost/kWh-99.99 cost/kWh Timing Display Range: 0 seconds-9999 days Total kWh and Cost Display: 0.000 kWh-9999 kWh, 0.00 cost-9999 cost

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,479 global ratings

Customers say

Customers like the performance and value of the electric circuit testing device. For example, they mention it works well and is well worth the price. Some are happy with utility. That said, opinions are mixed on readability, quality, and accuracy.

AI-generated from the text of customer reviews

69 customers mention50 positive19 negative

Customers like the performance of the electric circuit testing device. They mention that it seems to work well, is easy to configure, and provides the information they need. Some say that the meter is working splendidly without any issues so far and is highly recommended.

"...Absolute calibration is uncertain. Highly recommended-- apparently useful functionality for a very low price." Read more

"works great" Read more

"...Hours on and hours off doesn't seem to work. Is heavy and tends to fall out of receptacle. So big it squeezes out the other open receptacle from use...." Read more

"Works perfect. Plug it in and it's workingUse it to monitor power use in appliances..." Read more

26 customers mention26 positive0 negative

Customers find the value of the electric circuit testing device to be great. They say it's well worth the price, affordable, and useful to monitor power usage on a computer system. Some say it even enters your energy price to get overall cost. Overall, most are happy with the performance and value of this basic meter.

"...That being said, it seems to produce useful measurements and I will press it into service to analyze my household power use...." Read more

"...Second: Overall, the device does seem to work. And it's fairly cheap...." Read more

"...It measures electricity usage, and you can even enter your energy price to get overall cost...." Read more

"...Awesome performance for the price." Read more

10 customers mention10 positive0 negative

Customers find the electric circuit testing device useful to help track how much energy their distiller is using. They say it's great for monitoring electricity usage, giving accurate feedback on usage. Some say it works as described and is useful for generator load calculations. They also say it measures electricity usage and you can even enter your energy price to get the wattage pull through.

"This did exactly what I needed it to. It measures electricity usage, and you can even enter your energy price to get overall cost...." Read more

"Gives me accurate feedback on electricity use." Read more

"I found it useful to help track how much energy my distiller is using. Good value for the price." Read more

"Worked as described and was useful for generator load calculations." Read more

62 customers mention28 positive34 negative

Customers are mixed about the readability of the electric circuit testing device. Some mention that it's simple to use, the translated instructions are reasonably clear and adequate, and some parts are easy to understand. However, others say that the display is kind of hard to read, the instructions are in 3 pt font, and there are no graphics to help understand what they are trying to say. They also say that it is not backlit and it is very difficult to see readings in low light conditions.

"...Only 4 stars since it has no backlit displayHard to see in low light conditions" Read more

"...Very easy to use. Good product for the home." Read more

"...The meter measured exactly what I wanted it to measure. The instructions were cryptic, and they said to install a battery. Good luck with that...." Read more

"This is incredibly easy to plug into an outlet then plug the load in, and BOOM, you get instant power usage...." Read more

34 customers mention23 positive11 negative

Customers are mixed about the quality of the electric circuit testing device. Some mention it's a great product, awesome, and well worth the price, while others say it seems very cheaply made and constantly freezes.

"...Third: Sturdy & solid. Doesn't feel cheaply made (but I don't know how accurate it is). LCD is easy to read. Buttons are good...." Read more

"...Very easy to use. Good product for the home." Read more

"Works, but difficult to read, directions are useless, and doesn't accurately calculate the cost of usage.I regret this purchase." Read more

"...This product is great...." Read more

22 customers mention15 positive7 negative

Customers are mixed about the accuracy of the electric circuit testing device. Some mention that it seems accurate enough, while others say that it is not accurate at all and the absolute calibration is uncertain.

"Works as described and appears to be accurate...." Read more

"Translated instructions reasonably clear and adequate. Seems to read expected values but I have not compared its readings to known standards so can..." Read more

"...Absolute calibration is uncertain. Highly recommended-- apparently useful functionality for a very low price." Read more

"...It is accurate enough for my needs, and it is very easy to use." Read more

13 customers mention0 positive13 negative

Customers are dissatisfied with the screen of the electric circuit testing device. They mention that it's not backlit, making it hard to read from a couple feet away. Some say that the LED screen was defective and started to fade very quickly.

"...Only 4 stars since it has no backlit displayHard to see in low light conditions" Read more

"...The only problem is screen is not backlit and therefore very difficult to see readings in low light conditions...." Read more

"...a few hours and though at first it seemed to be ok the screen started to fade very quickly, so after just a few hours I could hardly read what was..." Read more

"...Great purchase. Only drawback...it’s not backlit. You have to strain to see the display or have it in a brightly lit area...." Read more

6 customers mention0 positive6 negative

Customers find the button on the electric circuit testing device difficult to use. They mention that it's small and requires a paperclip to reset. Some customers also report that the device constantly freezes and needs to be reset.

"...There is no way to reset the clock without resetting the entire device..." Read more

"...It's not difficult, but on my device the 'down' button is not working. I still can set everything, but it's kind disappointing...." Read more

"...The lack of an easy reset button to restart all the counters without resetting the cost/kwh is just plain dumb...." Read more

"...The only downside is the small reset button, it requires a paperclip or something of similar size to press. Recommend for the $$$" Read more

Useful tool
4 Stars
Useful tool
I like it, used it to test how much Wattage my PC consumes but also tried on other items to see how accurate it is. Is pretty close i would say.
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Top reviews from the United States

Reviewed in the United States on July 5, 2023
I purchased this mostly for fun-- and it was priced at a point that this is a reasonable use case. That being said, it seems to produce useful measurements and I will press it into service to analyze my household power use. I didn't rate its accuracy, lacking a calibration standard, but the measurements reported seem to be credible. I suspect it could be wholly relied upon for comparative assessment of power use. Absolute calibration is uncertain. Highly recommended-- apparently useful functionality for a very low price.
3 people found this helpful
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Reviewed in the United States on January 9, 2024
works great
One person found this helpful
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Reviewed in the United States on August 21, 2023
Works perfect. Plug it in and it's working
Use it to monitor power use in appliances
Building a solar and battery backup system for power failures
Only 4 stars since it has no backlit display
Hard to see in low light conditions
3 people found this helpful
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Reviewed in the United States on March 20, 2024
as product described
Reviewed in the United States on January 10, 2024
It must be good because i lent it to a friend and they haven't returned it! It would be nice if the screen was easier to read, but it gets the job done.
One person found this helpful
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Reviewed in the United States on December 30, 2020
I have a couple of power strips from my computer/printer/speakers/etc plugged into an outlet. I know these things don't individually draw many watts, but I was curious of how many total watts being drawn. The meter measured exactly what I wanted it to measure. The instructions were cryptic, and they said to install a battery. Good luck with that. I suppose you could take the back off and look around inside, but it seems the battery will simply hold your readings when the meter is unplugged. I wasn't interested in that feature, so it's no big deal. I didn't check all the other functions and I spent very little time with the instructions, but for what I needed it was perfectly fine.
3 people found this helpful
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Reviewed in the United States on October 26, 2019
Got this to check power use of appliances so I could calculate how many things my emergency generator can run.

First: The included instructions are about 85% indecipherable--maybe 95%. Four or five times through them and I'm getting a hint at what's being said. I don't think I can get anything more. Translated from a foreign language (Chinese?): missing words, wrong words, repeated words, wrong meaning, missing punctuation. And very poor structure for the layout of the instructions, including no graphics to help understand what they are trying to say or show how the device works.
For instance: I want to measure power draw for a number of different appliances (freezer, refrigerator, microwave, small AC unit, garage door opener). I plugged in my freezer and the device is reading the freezer wattage. Great. But if I want to check another appliance, do I need to clear everything using the Reset button? Or does the device begin reading the usage of the new appliance? No idea. The internal battery holds the last settings, but I don't know if they automatically reset when a different appliance is plugged in or not.

Therefore, learning how to use this has got to be by experimentation. If you know little about electricity (amperage, volts, starting and running watts), better get a meter with much better directions.

Second: Overall, the device does seem to work. And it's fairly cheap.

Third: Sturdy & solid. Doesn't feel cheaply made (but I don't know how accurate it is). LCD is easy to read. Buttons are good.

Final: I can't understand why a manufacturer goes to the trouble of making a device like this, and then fail to hire a capable translator to write the instructions.
82 people found this helpful
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Reviewed in the United States on August 12, 2023
I bought this to monitor the total load (wattage) usage for a recently purchased inverter generator and to also determine the load for each appliance. Very easy to use. Good product for the home.
3 people found this helpful
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