ISTUFF, DUAL USB CHARGER WITH LED VOLTMETER

Specifications:

• Input: DC 12V~24V
• Output: DC 5.0V, 2.1A
• Voltage meter: monitor your electrical performance
• 12V Plug: standard size to work with all vehicles
• When comparing the voltage metered on the display to the chart included you quickly determine the status of the battery and react before is too late