Product details:

Model No.: FLS-EC011 

.3-digital voltage display (Red/Blue/Orange) 

.12 Blue LED Flash indicator lights      

.Spray-paint/chrome-plated finish                                

.Electronic polarity protection circuit,automatically alarms When the 
polarity is reversed and the voltmeter will display low voltage

.Over-voltage protection circuit,automatically alarms when the voltage is too high or low                                                           

.(2) 0/4GA input/output terminals with a 18GA remote Control                               

.Working temperature:-40 to 105 degrees centigrade
.Mounting brackets&hardware included
.Extreme Low E.S.R.:less than 0.0015ohm
.Working Voltage:10V-17.5V
.Surge Voltage:24V
.Max Capacity:50F