Product details:
 

Model No.: FLS-EC002 

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

.Colorful shrinkable skin cover                                      

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

.Over-voltage protection circuit                                                           

.Working temperature:-40 to 105 degrees centigrade                                

.Transparent mounting brackets&hardware included
.Extreme Low E.S.R.:less than 0.0015ohm
.Size:76×220mm,89×225mm
.Working Voltage:10V-20V
.Surge Voltage:24V
.Max Capacity:5.0F