The MUCAR CDL20 Universal OBD2 Scanner is a professional-grade tool designed for vehicle diagnostics. Capable of reading and clearing check engine codes, displaying live engine data, and capturing freeze frame information, it helps users quickly identify potential issues. The scanner supports emission testing, including I/M readiness checks and O2 sensor testing, and provides advanced functions such as EVAP system testing where applicable. Its built-in DTC database includes over 3,000 code definitions, enabling clear interpretation of diagnostic codes. Featuring a 1.77” LCD display, intuitive menus, and four easy-to-use keys, the CDL20 ensures both DIYers and mechanics can perform thorough inspections with ease across most OBD2/EOBD-compliant vehicles.