Item No.: B11B560
 Easily plugs into vehicle’s cigarette lighter or power receptacle to monitor battery and charging system voltage  
Designed for 12-volt negative ground systems  
LCD displays measured voltage with a bar graph to indicate battery charge level  
Color-coded LEDs quickly identify battery’s charge status  
Head pivots for easy viewing and angle adjustment   
Green light:14.5V＞battery voltage＞12.6V  
Yellow light:12.0V＜battery voltage＜12.6V  
                    14.5V＜battery voltage＜15.1V  
Red light:battery voltage＜12.0V  
               battery voltage＞15.1V