The AutoLINK AL529HD is a heavy duty engine code reader for vehicles class 1 (0-6,000LBS) - class 9 (33,000LBS). It can read and erase heavy duty engine DTCS, supports J1939 and J1708 heavy duty protocols, can graph/record/playback live data, and display live and freeze frame data. The AL529HD supports all 10 OBDII test modes, has one-click I/M readiness/emissions testing and has enhanced Mode 6 diagnostics. It is updatable via PC, and includes a color screen, Deutsch 9-pin and Deutsch 6-pin connectors, and an OBDII cable. Free lifetime software updates are available with purchase. Product Features:Read/ Erase Heavy Duty Engine DTCsClass 1-9 Commercial VehiclesIncludes Deutsch 9-Pin & 6-Pin AdaptersSupports J1939 & J1708 HD ProtocolsOne-Touch I/M Readiness/ LED IndicatorFREE Lifetime Software (lifetime of tool)Support All 10 OBDII Test ModesEnhanced Mode 6 DiagnosticsGraph, Record & Playback Live DataDisplay Live & Freeze Frame DataCovers Domestic, Asian & European Vehicle Manufacturers (1996+)Includes OBDII CableEasy-To-Use Navigation /Software Updates via PCFull Color Display 320x240Save Files with Micro SD Card (not included)