Buy PsmGoods® USB 2.1A Charger Adapter 12V Digital LED Voltmeter for Car Auto Motorbike Motorcycle Black 9-30V

Features:
5V 2.1A USB charger for mobile phone, tablet, GPS etc.
LED voltmeter, display current voltage and test voltage anytime.
Made of high quality aluminium alloy.
12V input voltage, great for all car and motorbike.
USB charger with voltmeter, test voltage detection range 9-30V.
Easy to use and install

Specification:

Material : aluminium alloy
Input voltage: 9V-30V
Output voltage: 5V
Output current : 2.1A
Application: motorcycle, car
Color : Black
Product size: 3.5*6.5 cm
Voltage detection range: 9-30V

Note:
Not suitable for Samsung S7562 I739, and it is just usb charger for cell phone, not cigarette lighter.

Install tip:
Red cable for positive output wire, and black cable for negative wire.

Package included:
1* USB charger with LED Voltmeter

• 5V 2.1A USB charger for mobile phone, tablet, GPS etc.
• LED voltmeter, display current voltage and test voltage anytime.
• Made of high quality aluminium alloy.
• 12V input voltage, great for all car and motorbike.
• USB charger with voltmeter, test voltage detection range 9-30V.