Kingneed Truck GPS Speedometer 9.5 inch Extend Digital Display Vehicle Odometer Total Mileage Overspeed Alarm MPH

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About Kingneed Truck GPS Speedometer 9.5 Inch Extend

I. Main Features 1) Head-up display the driving speed. 2) Driving time and mileage calculation and display. 3) Over-speed alarm setting. 4) Fatigue driving alarm. 5) Altitude display. 6) Local time display with auto timezone adjustment. 7) 9.5in Large size screen. 8) Easy Setup--Plug & Play- Power through vehicle cigarette lighter. No professional installation is required. 9) Compatible with all Cars & Trucks. Use GPS signal guided calculation. No wiring needed to the VSS (vehicle speed signal). 10) Display MPH or KM/h. 11) Auto adjust brightness through sensor for Day & Night driving. 12) Green color data display, easy on your eye. 13) Total mileage display after car stops. II.Technical parameters: 1)GPS positioning time: 1 to 5 minutes in the open air (The bad weather will affect the positioning time). There is no GPS signals indoors. 2)Speed deviation: Since the speed data comes from the GPS satellite, slight deviation is unavoidable. 3)Input voltage: DC 5V Input current: DC 50-120mA Working temperature: -30 to 70 degree 4)Driving data deviation is around 2% 5)All driving data will be cleared when power off except the total mileage. 6)The output voltage of USB cable with cigarette lighter in the packing box is 12-36V, III. Packing List 1.GPS Speedometer x1 2.Cable with cigarette lighter x1 3.Sticker Stand x1 4.User Manual x1 5.Gift Box x1