GAC’s JDR series of J1939 data readers, are low-cost universal devices that allow users to read Diagnostic Trouble Codes (DTC’s). More advanced models allow users to monitor standard J1939 engine parameters, and or monitor and control Tier-IV diesel particulate regeneration function.

The JDR devices are designed for Electronic Engines (ECMs) and devices equipped with J1939 compatible Electronic Control Units (ECU).

Download our datasheet to find out which of our Instrumentation you’ll need with your particular engine. It will also list corresponding accessories and Options that will complete your Instrumentation system.