0-15V Analog Voltmeter Panel 85C1-V Gauge Meter 2.5 Accuracy for Auto Circuit Measurement Tester (DC 15V-3Pcs)

the other two when zeroed are off by 1/2 V at the upper end. so $12 for one good meter?

Was having trouble with starting my tractor. Used a voltmeter and found that occasionally voltage to starter solenoid was only 8v. Bought this set of 3 voltmeters and made a panel, with connections to three different places in circuit. Found cutout relay at fault. Easy to read and consistent. 15v range.

I'm using these to monitor the float voltage on lead acid batteries, which is 13.5 volts. When I applied 13.5 volts, they all read almost 14, which is right at the edge of the claimed 2.5% accuracy. So, I used the zero adjust to set them at 13.5, when 13.5 was applied. I used my calibrated H P 6.5 digit bench meter as a reference. Considering the cost, they'll work just fine for what I'm doing. If you're looking for more than 2.5% accuracy, keep looking; and, be prepared to spend a lot more money.

Fairly accurate when compared to more expensive meters and multimeters. Polarity unmarked, but that's a minor issue.