Customer Reviews:
Showing reviews 6-10 of 10
 Useful tool for motorhomes, and vehicles that sit... November 11, 2007
B. Slaughter (United States)
2 out of 2 found this review helpful
My motorhome has elaborate charging and monitoring for the house batteries, but nothing for the starting battery. This is an excellent tool to use to keep track at a glance to make sure the starting battery isn't allowed to get too low before taking some means to charge it. Don't expect accurate readings, as mine was reading about 0.5 volts low compared to a real voltmeter (until I opened it and adjusted the little pot).
Still, even without adjusting, if you park it, note whatever it reads fully charged (actually about 12.65V), and once once you see it has dropped a half of a volt, it is time to charge. I suspect they are all set a little different.
Well worth the price, but fragile as noted earlier.
A handy gizmo! November 2, 2007
Ted P. Graham (Loxahatchee, FL United States)
1 out of 1 found this review helpful
A very convenient, easy to read device for monitoring the condition of the battery in your vehicle. It is backlit enough to read at night though the LED lights are sufficent to know if you have a problem or not. I also like the portability of the unit. If someone else is having a problem, it is quite simple to plug it into their vehicle to check battery status. A nice little unit for the price!
Vector Disgital Voltmeter May 28, 2007
Christopher L. Darron (Flagstaff, AZ)
1 out of 1 found this review helpful
This plugs into lighter outlet and allows me to monitor car battery voltage when charging other items from the car. Easy to read. Works well
 12/24 Volt LCD Voltage Meter November 26, 2006
U. geerken
3 out of 3 found this review helpful
i've had one for 6-7 years now and only use it sporadically when helping people who need a jump to start their cars. (find it helpful for diagnostic purposes but that's out of the scope of practice for joe handyman) it's back lit and easy to read. cheaply built and not very sturdy, but what do you want for the price? occasionally it "jams" and won't show a reading. it needs to be unplugged and plugged back in again. not accurate for voltages lower than 7.0 or for the range 15-21 volts, but for 12 or 24 volt systems, will accurately indicate with numbers and 3 led sequential lights the amount of juice being fed in.
Great item - I use it in my airplane December 24, 2005
Gene A. Roberts (California)
4 out of 4 found this review helpful
Experiencing dificulties in my airplane related to variable voltage I purchased this voltmeter and plugged it in. It works great and lets me know exactly what the voltage is, as in the alternator gets turned off and I start to use battery power, this gauge lets me know exactly when that happens. Excellent piece of equipment. It is not robust, being made of plastic but works great for what it is!
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