12V 24V 3.1A Dual USB Car Charger LCD Display Smart Protection


Voltage: 12V
Face Color: Black

Material: Aluminum
Housing Color: Black
Reading Range: 10-20
Model Number: B18335

Diameter Size: 2" (52mm)
Style: Digital LED Readout
Product Name: 2" 52mm Air Fuel Ratio Gauge 
-2" (52mm) diameter gauge.

-3 buzzer types can be selected.
-4 buzzer levels can be selected.
-Black dial face when ignition is off.

-3 different open ceremonies can be selected.
-3 different types indicator movement can be selected.
-10 colors backlights can be selected, and it can memory the setting in the both daytime and night mode.
-Brightness can be selected in 6 different levels, and it can memory the setting in the both daytime and night mode.
-Data obtained during driving (peak value and warning value) can be stored up, and the peak value can be reviewed and cleared.
Common Button Operation:
1.There is a button in the backside of the gauge, the remote button is included.They are used to review and clear peak value,change the colors, adjust the brightness, choose the buzzer, set the warning etc.The remote button is same function as the button in the gauge. 
2.Short press to switch between different functions settings,long press until buzzer sounds, then enter the setting mode.It will return to normal status when the button is released after 5 seconds.
Power Wire Connecting : 
Black wire : To ground
Red wire :To 12V battery wire
White wire : To 12V wire when ignition on
Yellow wire : To 12V wire when small lamp on
Package Included:
1 x Air Fuel Ratio Gauge 
1 x Remote Button Wire
1 x Mount Bracket Cup
1 x Power Supply Wire
1 x Double Sided Tape
1 x English Manual
1 x Meter Wire
1 x Signal Wire
2 x Buffer
● The product is designed for use on 12v vehicles.Do not install this product on vehicles with 24v systems.
● Do not perform installation of this product immediately after the engine has been switched off. The engine and exhaust system are extremely hot at this time and can cause burns if touched.
● The LED color display of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.
● Please allow 0.5-1 inch difference due to manual measurement.(1inch=2.54cm)
● Instructions Is Included.Professional Installation Is Highly Recommended!!If you want to know how to use or install it,please contact us by Email.We will provide help as much as possible.



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