Steelman Combination ChassisEAR/EngineEAR II Noise and Vibration Detection System combines the features of a model 06600 ChassisEAR and model 06800 EngineEAR II system, allowing a technician to listen to six different under-chassis locations in one road test, while quickly pinpointing noises and locations of worn bearings & bushings, noisy valves & lifters, broken or worn gear teeth, faulty fuel injectors, wind or air leaks, and annoying squeaks and rattles. The ChassisEAR system includes 16'-long wire sensor leads to reach to all vehicle locations, with six (6) color-coded, super-sensitive microphone clamps that attach to problem areas, and the EngineEAR system includes a non-conductive microphone that will not zap expensive computer circuitry. Unlike the model 06606 Combo System, the kit also include the EngineEAR II's dB meter, with 7 sound-level control settings that measure 60 dB to 120 dB for super-sensitive noise pick-up and limited distortion of unwanted sounds. The dB meter also allows users to detect when the battery is low, and the high and low settings on the meter allow the interpretation of sound on both levels. Professional headphones are also included to amplify sound while shutting out surrounding noise, and a flexible shaft is included to reach the tightest areas.