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12/24 Volt LCD Voltage Meter

Catalog Item # 19983
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Know your battery's voltage from inside your vehicle.
Easy-to-read digital display shows battery's condition. Plug it into your cigarette lighter socket.
7.3"H x 4.9"W x 1"D.
This item qualifies for Product Protection coverage! Protect Your Investment! Product Protection eliminates out-of-pocket expenses and protects against costly product repairs or replacement. We’ll cover 100% parts and labor for up to two years following the expiration of your manufacturer’s warranty. Warranty service is available at any Camping World SuperCenter.

Technical Specs

Tech Specs

Weight: Less than 1 lb.

Manufacturer: Prime Products

Mfg Part #: 12-2020

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12/24 Volt LCD Voltage Meter: Customer Reviews

Camper's Choice Rating

(4 Based on 11 Reviews)

Reviewed by 11 customers


I am satisfied with mine.

103 out of 172 people found this review helpful.
November 07, 2005
I have had two of these, along with at least six or seven other volt meters (both consumer and professional grade). Within its obvious limitations as a line-powered electronic device, I am quite happy with the LCD voltage meter for the price. My two consistently read about 0.2 volts above what the professional self-powered multimeters say. This is no problem, as I just do the offset in my head. Occasionally the display will go blank, and I have to jiggle the meter in its 12 volt socket, but this is not a major thing either. Incidentally, autoparts stores sell similar meters for the same or higher prices, and those also read a couple tenths high. I have found the the cheap self-powered handheld multimeters on the market now actually have worse accuracy than this 12/24 volt LCD voltage meter.
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LCD voltage meter

128 out of 218 people found this review helpful.
June 03, 2006
This product is an excellent way to measure your remaining battery power and voltage when dry camping in your RV. As with many RV's, my "built-in" power center voltage meter is grossly inaccurate-it shows green status, with no gradients, right up to the point where I have zero power remaining, the lights shut down, the pump dose'nt work, and I am out of power, having to start the generator or engine. Very inconvenient if you loose power in a campground late at night, or early AM, esp. when cold and need the furnace! After I bought one of these, I was able to measure remaining power very accurately in my house batteries, by also downloading and printint out a voltage conversion chart (i.e. 13.4v=100% remaining; 12.8v=60=70% remaining; 12.2 volts=30-40% power remaining, etc..) and taping it up in a cabinet next to the power outlet where I test. I highly recommend this product, it can save you a load of inconvenience if you dry camp a lot, like we do!
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12/24 Volt LCD Voltage Meter

11 out of 20 people found this review helpful.
March 05, 2008
I have had this item for approximately 5 years now and it continues to work just fine. I have mine plugged in to an upper socket above the windshield of our Class A and am able to monitor the House batteries at all times. The only thing I have noticed lately is that all the LEDS are on all the time. Doesn't bother me because it reads very accurately.
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Very useful

0 out of 0 people found this review helpful.
March 02, 2009
I have had this device for a number of years now and it never fails. I use it in my tow rig and it is plugged into the power port on the dash. I use it to monitor the battery condition along with the charging system. It is a very useful "tool" for me.
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needs adjustment

0 out of 0 people found this review helpful.
October 01, 2012
I have two of these thy are handy and easy to use But thy were both read 12.6 but the real voltage was 12.9 when checked with my fluke meter that is the difference between a green normal lite & a yellow medium lite thy are easy to take apart and adjust I was a diesel mech. for 40 years and like to tinker
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Checking trailer batteries

0 out of 0 people found this review helpful.
November 15, 2012
I have a 12-vdc outlet inside of a cabinet in my travel trailer in which I keep this voltage meter plugged into for checking my trailer's batteries voltage. Works great - for the price paid.
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Every Camper Needs This

0 out of 0 people found this review helpful.
June 03, 2014
Plug it in and leave it. Lets you know if batteries need charging.
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Voltage Meter

0 out of 0 people found this review helpful.
July 14, 2014
This is a very nice simple and accurate meter. It will drop to the yellow relatively quickly, it is sensitive. I did monitor it with a true volt meter and it was the same results. It is way more accurate than the one on the camper itself. It is nice to know the actual voltage so you can be proactive instead of reactive.
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0 out of 0 people found this review helpful.
August 04, 2014
Gives a clear reading on how your converter is charging.
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Good for quick checks, not daily driving

0 out of 0 people found this review helpful.
March 30, 2016
Good for a quick check. Do not use as a continuous volt meter while driving. It is not temperature compensated and the voltage reading will increase several volts during a day of travel ultimately showing 17-18 volts when the system is at 14.5 volts.
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Battery volt meter

0 out of 0 people found this review helpful.
April 17, 2015
Gave accurate readings first couple of months then went berserk. Sometimes says 12 volts then says 20 volts more or less. This is not possible on a 12 volt battery. Tried it in other vehicles with same results. Camping World would not allow return or exchange because it was over 30 days past purchase and did not have protection plan coverage. Would not recommend this product.
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Q & A

Product Question & Answer

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Are they adjustable for accuracy
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