Product high lights       1.-3 in 1 Smart Car Safety System: GPS HUD & Vehicle Inclinometer & TPMS tire pressure monitor (External Installation TPMS Sensor & Internal Installation TPMS Sensor are available)    2.- Speed Unit:KM/H & MPH Switch freely.    3.- Built-in high-precision GPS module, more accurate with Speed, Attitude, Longitude and latitude.    4.- Real-time monitoring for tire pressure & tire temperature, car speed,Voltage, Attitude, Pitch angle, Driving Direction etc    5.- Easy installation: Plug & Play,USB connector,can work on all vehicles.    6.- Display information:    GPS Speed, Clock, Coordinates Display / Longitude and latitude, Compass, Altitude,Vehicle Roll Angle, Vehicle Pitch Angle, Tire Pressure, Tire Temperature, Voltage...    7.- Different kinds of Alarms:    Tire Low / High pressure alarm, Tire Leak Alarm, Tire sensor alarm, Over-speed alarm, Tilt Angle Danger alarm, Pitch Angle Danger Alarm, Fatigue Driving alarm    8. Accept customized orders (start with 100pcs at least) : add buyer's own logo on the start-up screen, add more functions...            Main Functions    1. Speed    2. Voltage display    3. GPS number: flashing means searching for satellites, GPS light stops flashing and displays the number of satellites after the satellites are found    4. Latitude Longitude    5. Speed    6. Clock    7. Time    8. The clock defaults to the UTC+8, and the time in the UTC+8 is displayed after the satellite signal is searched (adjust the local time zone according to the location)    9. Fatigue driving alarm, flashing reminder after accumulated driving for >4 hours    10. Compass direction scale    11. Tire Pressure Sensor- default External tire sensor.    Optional Internal tire sensor, is more accurate            Price List    1* Main Devce    2* Power Cable    1* External Tire Sensor    1* User Manual