The newest Millennium OBD is an entry-level and plug and play tool that will help you detect the a vehicle’s problems in a cost effective way. Best Choice DIY for entry-level technicians Features Look up the definition of diagnostic trouble codes (DTCS) Graph live data of multiple sensors displayed Features freeze frame data to do fast and accurate repairs Features 1/M Readiness function with one click key View vehicle information to check VIN and its performance No batteries required and powered by OBD II port Supports 9 OBD II Test Modes Read Codes, Erase Codes, Live Data, On-board Monitor Test, O2 Sensor Test, I/M Readiness, View Freeze Frame, View Vehicle Information, Evap System Test. Specifications Display: 2.8” LCD Input Voltage: 9~18V Working Temperature: -10°C~50°C Storage Temperature: -20°C~70°C Storage: 15 M New Weight: