An introduction and overview of JME’s CR2 Pipeline Crawler Test Box. Suitable for JME’s NEW CR2 Pipeline Crawler Systems our intuitive test box represents a real change in the way in which the user can communicate with and diagnose the pipeline crawler system. The advent of JME’s next generation of crawler systems sees the transition from older “analogue” electronics over to microprocessor controllers. The benefit of this new technology is that the diagnostic information can be extracted from the system using the test box as opposed for the requirement for engineers to manually test circuitry and diagnose individual component failure.