Waterproof Voltmeter for Car

Specifications

Waterproof Voltmeter DC 

Product: LED Duel 2 USB Port Charger With DC Voltmeter Digital For Car Boat Marine Carvan 
Socket material: Heavy nylon
Input : 5V-30V DC
Grounding: Self-grounding
Waterproof Design
The meter LED Lamp display is red.

Features :
1. For your Motorbike Car / Boat / ATV / UTV / Camper / Caravans / Travel Trailer etc
2.This is a high quality voltmeter for checking the state of your battery and battery charger.
3.The state of your battery between full charged and discharged.
4. Can indicate a poor or bad charging system. Tells whether your battery is holding a charge or not.
5.The meter has easy to read red LED segments and connect to your 12 volt system.
6. Specifically designed for marine and automotive applications
7. Beware of inferior products on the market that claim to be just as good .but we support the sample for the test .