Feature:1. OBD+GPS dual system 2. Two installation methods, A-pillar trim + dashboard installation. The first model that can be installed on the A-pillar trim. 3. Currently the first model whose screen can rotate 270 degrees. 4. The first model whose resolution is 240*240, high-definition display. 5. There are three units of turbine pressure: PSI, 100kPa, and bar. The turbine value can be adjusted and calibrated; also with fuel consumption unit: KM/L. 6. Up to 10 Hz refresh rate, no stutter delay. 7. GPS function can be displayed at the same time in OBD mode, the first model in the industry. 8. When the speed is switched to MPH, the water temperature will automatically switch to Fahrenheit , the single driving distance will automatically switch to Miles, and the fuel consumption will automatically switch to Gallon MPG. 9. 8 display screens can be selected.Specification:Product size: 97*61*49mm/3.82*2.40*1.93 Net weight: 40g Package size: 110*110*70mm/4.33*4.33*2.76 Gross weight: 190g Installation position: 1. Tied on A-pillar trim; 2. Lay flat on the dashboardNote:OBD2 model can work for OBD2 gasoline vehicles produced after 2004 in USA, and OBD2 gasoline vehicles produced after 2008 in other countries. Package Includes:1 x HUD 1 x OBD2 Cable 1 x Fixing Strap 1 x English ManualStyle B Style C NOTES:OBD2 model is not applicable for the following cars: Incompatibility: American models: for Dodge, for JEEP, for IMSEOER, for Chrysler and cars manufactured before 2004 in USA Incompatibility: French and Italian cars are not available: for Fiat, for Maserati, for Lamborghini, for DS, for PEUGEOT , for Citroen, for Renault, for Simca etc. Incompatibility: Some Japanese cars are not available: for Suzuki, for Mazda 6, for INFINITI (QX50 Q50 Q501), for Toyota AVANZA in 2013, for Lexus (is250, ex250, ES300H), for Honda (jazz, CRV) and cars manufactured before 2008. Incompatibility: Korean KIA and some cars for Hyundai(for 2013 Hyundai Sonata, for 2017 KIA Soul PS, etc.) Incompatibility: Hybrid and diesel vehicles, pickups, RVs, cars with modified automotive computers, for Volvo, for Switzerland, for Chrysler Group, for all brand models under Fiat Group. Incompatibility: German cars before 2004 For the above cars can not use OBD2 models , please use GPS models.