Introduction: Android system for tablet PC, mobile phone and smart TV optional. Portable 5 pieces of cameras for measurment workable in outdoor. Shatter-resistant 8" target exchangeable for each wheel WIFI communication among cameras, tablet PC, mobile phone, TV monitor, keyboard and mouse. Voice prompt and improper operation display. Suitable for passenger car, bus and truck with less than 6 meters long of wheel base. Data update based on update APP. Standard Accessary: 4 pieces of targets, 4 pieces of 24clamps,32LCD monitor with Android system, turntable, 2 pieces of wedge, steering wheel lock, foot brake depresser, wireless keyboard and mouse. Optional Accessary: Tablet PC, WiFi wireless printer. Technical Data Measuring Item Accuracy Measuring Range Toe ±0.01°or ±0.01 mm ±20° Camber ±0.01° ±30° Caster ±0.02° ±30° Set Back ±0.01° ±20° Thruste Angle ±0.01° ±20° Wheel Track 1200-3000 Wheel Base 2000-5000