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DROK Voltage Test Monitor, 2 pcs Plug in Digital Volt Meter for RV, AC 80-300V Flat US Plug LCD Display Voltmeter 110V 220V Voltage Measuring Monitor Panel Power Line Volt Tester Gauge

4.8 4.8 out of 5 stars 1,310 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Voltage Testers by DROK

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80-300V
2

Purchase options and add-ons

Brand DROK
Power Source Corded Electric
Style Digital
Color Blue
Measurement Type Voltmeter

About this item

  • Wide Measuring Range: DROK plug-in voltage monitor measuring voltage range is AC 80-300V(110V, 220V), with a low consumption of less than 1W (about every 1200 hours consume 1 kilowatt-hour).
  • Adjustable Potentiometer: There’s an Interior Potentiometer inside the meter for accuracy adjustment. Just use screwdriver to open the outer case and adjust the potentiometer with small size screw driver. Adjust the potentiometer counter-clockwise when it’s excessive voltage; if the displayed voltage is too low, adjust the potentiometer clockwise.
  • Flat Plug: Designed as a flat plug, this volt tester can immediately detect and measure the current voltage by connecting to the switch plug or other kind of wall socket, simple and easy to use, it allows you to check on power health of devices for preventing the low voltage damage to your valuable household appliances.
  • LCD Display: Built in Premium LCD digital display with blue backlight, this voltage monitor is convenient for you to view the data on it even in dim night. Moreover, it can be used as a voltage meter as well as a night light.
  • Wide Applications: It is ideally applicable to measuring the AC voltage in family, office space, industrial and mining enterprises, etc. (Please keep the children away from the product & do not use the product in a damp environment.)

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 5.59 x 3.19 x 2.2 inches; 3.21 ounces
  • Item model number ‏ : ‎ 200376BFA
  • Date First Available ‏ : ‎ October 24, 2018
  • Manufacturer ‏ : ‎ DROK
  • ASIN ‏ : ‎ B07JN1JDC1
  • Customer Reviews:
    4.8 4.8 out of 5 stars 1,310 ratings

Product Description

Parameters:
Measuring accuracy: +/-1.5%, +/- 2 word
Measuring range: AC 80-300V (110V, 220V)
Consume power: Less than 1W(about every 1200hours consume 1 kilowatt-hour)
Plug Style: US Plug
Number of Digits: 3 Digits

Potentiometer adjusting method:
Please use the Phillips screwdriver to open the outer case of the voltmeter;
then adjust the potentiometer with small size Phillips screwdriver.
If the displayed voltage is too high, please adjust potentiometer counter-clockwise;
If the displayed voltage is too low, please adjust potentiometer clockwise.

Application:
The monitor can be widely applied in AC 80-300V mains measurement, such as office, factory, laboratory, household and so on.
-You can use this item in RV as a way to view voltage to prevent issues with appliances.
-You can use this item to monitor the voltage of other appliances; when this volt gauge displays too high or too low voltage, you can selectively turn off your appliances or equipments so as to prolong the life of your appliances.

Notice:
Keep the children away from the product.
Do NOT use the product in a damp environment.

Package Includes:
2x Voltage Test Meter


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Customer reviews

4.8 out of 5 stars
4.8 out of 5
1,310 global ratings

Customers say

Customers like the quality, ease of use, readability, brightness, and accuracy of the electric circuit testing device. They mention that it works great, is ideal for home voltage monitoring, and is easy to see and read. Some appreciate the backlight, which doubles as a night light. Overall, customers are happy with their purchase and recommend it to others.

AI-generated from the text of customer reviews

262 customers mention259 positive3 negative

Customers are satisfied with the quality of the electric circuit testing device. They mention that it works great, has an easy-to-read display, and is ideal for home voltage monitoring. The device is also very useful and can be used for checking power at camp. Overall, customers are happy with their purchase and recommend it to others.

"Works great I use it to monitor the voltage in our RV...." Read more

"Works good for checking power at camp" Read more

"Very usefull these days." Read more

"I bought this to use in my Motorhome. Works great, easy to see, just what I wanted." Read more

129 customers mention129 positive0 negative

Customers find the electric circuit testing device easy to use. They say it's a very easy way to check your line voltage with a digital read out. They also say it provides voltage info at a reasonable (+/- 2%).

"Easy to use. Accurate reading. Simple tool." Read more

"Really handy for checking/monitoring voltage on an outlet or circuit." Read more

"I bought this to use in my Motorhome. Works great, easy to see, just what I wanted." Read more

"...It is also a super voltage monitoring tool when you’re hooked up to shore power. No more wondering how the voltage varies when we are hooked up...." Read more

94 customers mention89 positive5 negative

Customers find the electric circuit testing device easy to read. They say it has a clear LCD screen with blue background and is easy to view night or day. Some mention that the size is compact.

"Easy to use. Accurate reading. Simple tool." Read more

"Easy to read very helpful in monitoring your campers battery life." Read more

"...Easily viewable night or day. Just what I wanted." Read more

"...Ez to read day or nite. They do seem to have a lifespan of about 1 1/2 years. Ive gone thru 4 so far. You just plug one into any 120v outlet." Read more

91 customers mention86 positive5 negative

Customers like the brightness of the electric circuit testing device. They say that the blue background light is bright enough to serve as a night light. The device is easy to read and has a nice backlit display. Customers also mention that it works well in the dark and is a great buy.

"...I haven't tested it for accuracy, but the numbers it's showing me seem reasonable. Easily viewable night or day. Just what I wanted." Read more

"...Deducting one star for the variance between devices. Nice big, bright, well backlit display...." Read more

"This unit is small, yet easy to see/read - It is bright, Makes a good night light in camper when hooked up to site AC, or generator is running...." Read more

"...As previous reviewers have noted, this device makes for a great night lite in an RV. In fact, we purchased two, one for each bathroom in our RV...." Read more

88 customers mention77 positive11 negative

Customers like the accuracy of the electric circuit testing device. For example, they say it's very accurate, equals their expensive Fluke meter, and accurate within 1 volt. It's easy to read and provides continuous live voltage readings. Customers are also impresseded that it tells them what their working voltage is, and is consistent.

"...like at home, nice RV parks and crappy RV parks it seems to be fairly accurate. Don't need a super exact reading for what I use it for anyways." Read more

"...I have to say I'm relatively impressed, its accuracy is as good as anything I've seen at three times the price...." Read more

"...They seem to be about 98-99% accurate compared to my best DVM. Not bad overall. Deducting one star for the variance between devices...." Read more

"...+/-, of the DROK device, so I am reasonably confident that the DROK piece is accurate...." Read more

57 customers mention57 positive0 negative

Customers are satisfied with the value of the voltmeter. They mention that it works well, is cheap, and an inexpensive way to monitor voltage. Some say that it's a nice little addition to their kit.

"This little voltmeter is a great value and I simply don't understand why anybody would want to spend more than they need to....." Read more

"...Surprising for the price, but I'll take it!Just wish it wasn't a blue backlight...." Read more

"...Reasonably priced. Highly recommend." Read more

"economical, & does the job. fits close to the wall and outlet" Read more

47 customers mention43 positive4 negative

Customers are satisfied with the size of the electric circuit testing device. They mention that it is small enough that it does not interfere with other devices, and that the digits are a good size and easy to see. The display is large enough that they can read it without any trouble. It snugly fits into standard 120 volt AC outlets and takes up only one outlet space.

"...Nice big, bright, well backlit display. They take up only one outlet space and don't really interfere much with things plugged into adjacent..." Read more

"This unit is small, yet easy to see/read - It is bright, Makes a good night light in camper when hooked up to site AC, or generator is running...." Read more

"What more can I say? It snugly fits into standard 120 volt AC outlets, is easy to read, and accurately shows the current voltage coming out of the..." Read more

"...It works great and the size is actually perfect. The display is large enough that I can read it without any trouble and seems to work as advertised...." Read more

38 customers mention38 positive0 negative

Customers like the display of the electric circuit testing device. They say it's clean looking, brightly lit, and easy to read in daylight. Customers also say it has a perfect design and works like it should. They describe the device as a cute little voltage monitor with a bright display. Customers say a simple glance tells them the system is within. They also mention the devices are sleek, plug-in devices with an easy to-read LED display that actively.

"...These are sleek little plug-in devices with an easy to read LED display that actively monitors the voltage coming through a circuit...." Read more

"...Got a 2nd one of these and find they have a nice bright blue display so I use it also as a night light...." Read more

"...and the blue light it emits is a soft and soothing glow making it a very nice and practical night light...." Read more

"Straightforward design and nice back lit display...." Read more

Just as accurate as meters costing three times as much
5 Stars
Just as accurate as meters costing three times as much
This little voltmeter is a great value and I simply don't understand why anybody would want to spend more than they need to..As an electronics engineer let me assure you that the old adage "you get what you pay for" more often than not is nothing more than marketing hype.Let's be honest AC voltage meters aren't state-of-the-art technology it's actually been around for quite some time. My only real concern is safety as this particular meter does not appear to have passed any insurance safety standards testing as I did not see any certifications for UL/ ETL/ FCC/ CE..With that said it's such a simple device that I'm not overly concerned with it. Be aware that most homeowners and RV insurance policies prohibit the use of non UL for non ETL listed devices.In other words if the device causes a fire your insurance company can void your insurance and refuse to cover the damage.As such it's always wise to check with your insurance company and see what their policy is regarding the use of non UL, non ETL listed line-level products..I really didn't need this device as I have a complete Electronics lab full of very precise equipment but I'm kind of a test equipment junkie and was curious to see what I was going to get for five bucks..I have to say I'm relatively impressed, its accuracy is as good as anything I've seen at three times the price. As such I have no problem recommending it.The only problem with digital meters is that they react to slowly to see fluctuations in power levels. As such I always recommend using an analog gauge in combination with a digital gauge.The analog gauge will show you rapid fluctuations in voltage that can indicate a problem while the digital gauge gives you a reference of the instantaneous voltage. If you ever visit a nuclear power plant you will notice that they use a combination of digital gauges and analog gauges on the same measurements for precisely this reason.Anyhow the bottom line is it's well worth the money.
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Top reviews from the United States

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Customer image
5.0 out of 5 stars Just as accurate as meters costing three times as much
Reviewed in the United States on August 10, 2019
This little voltmeter is a great value and I simply don't understand why anybody would want to spend more than they need to..

As an electronics engineer let me assure you that the old adage "you get what you pay for" more often than not is nothing more than marketing hype.

Let's be honest AC voltage meters aren't state-of-the-art technology it's actually been around for quite some time.

My only real concern is safety as this particular meter does not appear to have passed any insurance safety standards testing as I did not see any certifications for UL/ ETL/ FCC/ CE..

With that said it's such a simple device that I'm not overly concerned with it.

Be aware that most homeowners and RV insurance policies prohibit the use of non UL for non ETL listed devices.

In other words if the device causes a fire your insurance company can void your insurance and refuse to cover the damage.

As such it's always wise to check with your insurance company and see what their policy is regarding the use of non UL, non ETL listed line-level products..

I really didn't need this device as I have a complete Electronics lab full of very precise equipment but I'm kind of a test equipment junkie and was curious to see what I was going to get for five bucks..

I have to say I'm relatively impressed, its accuracy is as good as anything I've seen at three times the price. As such I have no problem recommending it.

The only problem with digital meters is that they react to slowly to see fluctuations in power levels. As such I always recommend using an analog gauge in combination with a digital gauge.

The analog gauge will show you rapid fluctuations in voltage that can indicate a problem while the digital gauge gives you a reference of the instantaneous voltage. If you ever visit a nuclear power plant you will notice that they use a combination of digital gauges and analog gauges on the same measurements for precisely this reason.

Anyhow the bottom line is it's well worth the money.
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4 people found this helpful
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Reviewed in the United States on March 24, 2024
Size: 80-300VNumber of Items: 2Verified Purchase

Top reviews from other countries

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Bert
5.0 out of 5 stars Plug it in and get your reading.
Reviewed in Canada on September 2, 2021
Size: 80-300VNumber of Items: 1Verified Purchase
Mariano Molina
5.0 out of 5 stars Excelente producto
Reviewed in Mexico on February 2, 2021
Size: 80-300VNumber of Items: 1Verified Purchase
Gervais
5.0 out of 5 stars indispensable en vr
Reviewed in Canada on August 8, 2023
Size: 80-300VNumber of Items: 1Verified Purchase
Kkino
5.0 out of 5 stars Producto excelente
Reviewed in Mexico on December 17, 2018
Size: 80-300VNumber of Items: 1Verified Purchase
Scott R.
5.0 out of 5 stars You need to monitor your power in your mobile home or camper.
Reviewed in Canada on March 7, 2019
Size: 80-300VNumber of Items: 1Verified Purchase
One person found this helpful
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