Digital Voltage Meter 12V, DROK LED Display Voltmeter Panel Precision Variable 2 Wires 3 Digits DC3.5-30V Voltage Tester 12V/24V Volt Reader Gauge Car Vehicle Solar Boat Battery Monitor Detector

Parameters:
Dimensions:  48 x 29 x 21.5 mm / 1.77 x 1.14 x 0.85 inches (L*W* H)
Cutting size: 45.5 x 26 mm / 1.79 x 1.02 inches (L*W)
The minimum input: 3.50V DC
The maximum input: 30.0V DC
Measurement range: DC 3.50 - 30.0V
Measurement accuracy: +/- (0.5% + 2 Digit)
Display mode: Three 0.56 LED digital tube
Update rate: About 500 ms/time
Lead wire length: 14 cm / 5.51 inches
Operation temperature: -10 °c to 65 °c
Protection: Anti-reverse protection

Wiring:
Red wire: please connect the red wire to positive pole of power supply(Power Supply +) or positive pole of measured voltage(Measure Voltage +)
Black wire: please connect the black wire to negative pole of power supply(Power Supply -) or negative pole of measured voltage(Measure Voltage-)

Note:
1.When truck battery is fully charged, its voltage is about 28V. And if the truck starts immediately,the pulse
interference is likely to damage the meter.This meter does not fit 24V truck.So if you want to use a meter in
such a situation, please choose a 15-80V voltmeter.
2.Please note that its starting voltage is low and could be merely 3.5V

Package Included:
1x Digital Voltmeter