Features:
Clear and bright LED display for indicates the digits. 
Used to measure the voltage of automobile.
Add a racing look and feel to your ride， high quality and light weight.
High accuracy and easy operation.
Easy Installation， then you can use it conveniently.

Specifications:
Color: White + Black Mirror Surface
Material: ABS
Light Source: LED White Display
Reads: 8 - 18V
Power: DC(10-15V) 12V Professional
Current: IGN MAX 0.3A ILM 0.3A
Gauge Diameter: 52mm / 2" 
Gauge Length: 7.3cm / 2.87in
Gauge Wire Length: Approx. 54cm / 21.26in
Gauge Weight: 142g / 5oz
Package Weight: 266g / 9.39oz
Package Size: 16.5 * 12.3 * 7.8cm / 6.5 * 4.84 * 3.07in (L * W * H)

Note:
Now this gauge only with 2 wires(red and balck).

Package List:
1 * 0-18V Volt Gauge
1 * User Manual(English)