Features and Benefits:

• Excellent technician's aid designed to detect and locate sources of abnormal noise.
• Allows technician to quickly find and analyze the source of a problem in engines of other moving parts.
• Sound is transmitted and amplified through a sensitive diaphragm.
• Use to pinpoint worn or defective bearing; locate cylinders with engine knocks; and determine if any fuel injectors are hung-up or inoperative.
• Includes a 12" probe extension.