These J1939 gauges can be connected directly to the vehicles bus network - no instrument controller or gateway device required. DDBI’s electronics architecture enables a standalone solution.

New DDBI gauges have been updated to handle the increased J1939 baud rate of 500kbit/s. They are capable of detecting the baud rate of the machine and adjusting their own baud rate accordingly. This allows for backwards compatibility with current Datcon products and for use on both 250kbit/s and 500kbit/s systems.

SAE J1939 Direct Databus Instruments [DDBI 500]


  • Auto baud rate detection for backwards compatibility
  • 9-32V operating voltage
  • English or Metric units
  • White LED backlighting
  • Reliable and accurate stepper motors
  • Reinforced case w/ integral connector
  • Fully sealed for all-weather use
  • CE Certified
  • RoHS Compliant

2-1/16” SPECIFIC:

  • Dual Color Indicator for high/low warning or DM1 message
  • Matching analog gauges for non-J1939 signals

3-3/8” SPECIFIC:

  • 132 x 64 Dot Matrix LCD
  • J1939 Fault Code support
  • Analog inputs for Fuel Level and Brake Pressure
  • Integrated settable service meter
  • Optional through lens trip switch


  • -40°C to 85°C
  • IP 67 Sealing
  • Exceeds SAE standards for vibration and salt spray
  • 9-32V operating voltage
  • Reverse polarity and transien protection including load-dump, over-voltage, and ESD