Features:

Unique water resistant & dustproof cover design.
LED light， easy to read the voltage in dark.
Compact design 2in1 Car dual USB charger and voltmeter， great forcharging and voltage checking.
Compatible with USB 2.0 mobile devices， including digital cameras，PDAs， mobile phones and USB accessories.
CE & RoHS certified.

Specifications:

Material: ABS Plastic
Color: Black
LED Color: Red
Input voltage: 12V - 24V
Operating temperature: -45u00b0C~+85u00b0C
USB Output: 5V
USB Output Current: 2.1A and 2.1A
Mounting Size: 1.47" x 0.84"
Dimension: 2" x 2" x 1"
Certification: CE， RoHS

Package Includes:

1 x Dual USB Port Voltmeter Socket
2 x Insulated Terminals