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Auto Meter 6391 Cobalt Digital Voltmeter Gauge: Accurate Voltage Measurement for Optimal Performance Review

3

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Very good

Revainrating 5 out of 5  
Rating 
4.8
📊 Car Gauges, 🚗 Interior Car Accessories

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Description of Auto Meter 6391 Cobalt Digital Voltmeter Gauge: Accurate Voltage Measurement for Optimal Performance

Features Auto Meter's E-Z View Digital LED Display System which maximizes readability and minimizes distracting high speed digit changes. Gauge kit includes wiring harness, mounting hardware, and detailed instructions for installation. Auto Meter’s race proven digital stepper motor electric instruments provide unmatched accuracy which is further increased by utilizing a self calibration sequence during power up. 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system. Registers voltage down to a tenth of a volt.

Reviews

Global ratings 3
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  • 4
    1
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Type of review

Revainrating 5 out of 5

Reliable Digital Gauge for Car Owners

According to my experience, this digital voltmeter is an awesome device to have in your car. It accurately measures the voltage and is easy to install and use. The sleek design blends well with any car dashboard. The only downside is that it doesn't come with mounting hardware.

Pros
  • Accurate measurement, easy to install, sleek design
Cons
  • No mounting hardware included

Revainrating 4 out of 5

Great product - only complaint is the weird "boot sequence ".

Excellent product. The only complaint is that the strangely displayed "boot sequence" is fake. I like simple things. I needed a digital readout to ensure the Megasquirt was getting the desired voltage. It's absolutely accurate and looks great on my CJ's dashboard.

Pros
  • Practical thing
Cons
  • There are more interesting options.

Revainrating 5 out of 5

Works as advertised.

I bought this 6391 Cobalt Digital Voltmeter Gauge apparently to monitor my truck's charging system. My 1989 Nissan pickup just has a dumb light indicating a problem and I needed a better way to make sure my alternator was actually charging my battery and that the battery was holding a charge. After a few weeks of use I can say that I had no problems. The display is large and bright enough to be seen in broad daylight. It has a cable to connect to the car's headlights, but I didn't connect it…

Pros
  • Easy Setup
Cons
  • Error