OTC 3840F 2-Channel Automotive Lab Scope Kit Contains information for most domestic vehicles as well as many imports Recommends the appropriate test procedures for fast accurate repairs Visible on the screen are diagrams showing pin numbers and wire colors for both the PCM and the component connector Powerful built-in reference information for each preset test include a test procedure normal reference signal pattern theory of operation and trouble shooting tips Heavy-duty stainless steel probe with insulated shaft and heavy-duty clip with positive soldered connection