Zeltauto 2 Pack LED Digital Car Voltmeter 12V/24V Vehicle Voltage Gauge Monitor for Auto Car Truck
Brand: Zeltauto
Color: Black

Specifications:
Color: Black
Screen digital color: Red
Apply for: DC 12V or 24V car
Input voltage: 12V/24V
Output voltage: DC 12-24V
Measuring range: DC 8V-30V+-1.2%
What kinds of batteries is healthy?
1.when engine running (do not drive), the LED display:
Between 13.5 to 14.5(12V CAR)
Between 26.0 to 28.0(24V CAR)
2.With the engine off, and nothing turned on, the LED display:
greater than 12.0(12V CAR) OR 24.0(24V CAR)
Installment:
Clean the cigar socket.
Insert the jack of the product into a cigar socket.
Advantages:
With high brightness of LED (light-emitting diode) there is no difficulty in seeing the display.
This digital gauge displays the voltage of batteries in the car.
Package:
1 x Electric Voltage Meter

With red screen digital color, there is no difficulty in seeing the display; Apply for DC 12V or 24V car; Measuring range: DC 8V-30V+/-1.2% (The voltage of car usually reads 12V±0.5V when it works; PLEASE ALLOW 0.1-0.5 VOLTS DISPLAY ERROR)
This digital gauge displays the voltage of batteries in the car; Powered by car cigarette lighter charger
Simple enough to use, just plug it into cigar lighter socket, watch alternator's output from idle to accelerated speed
When engine running (do not drive), the LED display: between 13.5 to 14.5 (12V car), between 26.0 to 28.0 (24V car)
When engine off, and nothing turned on, LED display: Greater than 12.0 (12V car) or 24.0 (24V car)