JAMHER DC 12V 24V Waterproof Car Voltmeter with LED Digital Display Panel and Mounting Plate Round Voltage Gauge Meter with Terminal kit

Applicable for:
The car voltmeter with LED light is suitable for motorcycle, boat, caravans, travel trailer, applicable in monitoring the voltage of the storage battery and measuring other product.

Easy to Install:
1.Drill a hole with about 3mm
2.Put the panel on the hole and insert the voltmeter, Unscrew the nut on the charger. Place the charger in the hole and tighten the screw ring to the voltmeter
3.Connect red wire to plug(+)and black wire to the plug (-)
4.Connect "+" to the positive pole of the battery, "-" to the negative pole

Why do we need a voltmeter？
With a precise 3-digit LED voltmeter, you could better monitor the starting battery voltage or charging rate when driving your car.
So it can avoid the voltage if is too high or too low to affect the normal operation of your car, thereby helping to extend the service life of the car battery.

12V-12.8V:Normal voltage range before starting
12.8V-14.8V:Normal voltage range after starting

Package includes:
1 * Green digital voltmeter
1 * surface mount
1 * round nuts
2 * screws
2 * insulated terminals
1 * 23.6 inch connecting cables