Product Overview

HT-192, a professional vehicle diagnostic module is an optional component to be connected with in-Vehicle tracking device, it could captures vehicle diagnostic data and diagnostic trouble codes, and can be easily integrated with any vehicle terminal equipment by a simple serial port.



  • Supports all legislated OBD-II protocols and J1708/J1939 (heavily duty vehicles)
  • Solid automatic protocol detection algorithm, connects to more vehicles reliably
  • Smart keep-alive algorithm helps ensure a stable communication with vehicles
  • UART interface, easy integration
  • Built in boot loader for firmware upgrade
  • Large cache capacity
  • OBD Protocol: SAE J1850 PWM, SAE J1850 VPW, ISO 9141-2, ISO 14230-4, ISO 15765-4, SAE J1587/J1708, SAE J1939


Technical Specification

  • Dimension: 53mm*51mm (length*width)
  • Interface: RS-232 (HT-192A); RS-485 (HT-192B); OBD Interface
  • Storage: 2MB FLASH
  • Power: 5VDC
  • Voltage:12V/24VDC
  • Working Temperature: -30℃ ~ +70℃
  • Storage Temperature: -40℃ ~ +85℃
  • Humidity: 5%~95% (no frog)


HT-192 Technical Specification_v1.2