This Sears Engine Analyzer Model 2161 (28-2161) is a reliable tool for diagnosing engine problems in passenger vehicles and heavy-duty/commercial vehicles. With its original box and instructions, this engine analyzer is a great addition to any mechanic's toolbox. It is perfect for those who want to keep their vehicles running smoothly and efficiently. Whether you are a professional mechanic or a DIY enthusiast, this engine analyzer is a must-have for diagnosing engine problems. Looks to have been used very little. In working condition. The Items are described as accurately as possible. Please examine the attached pictures carefully, as they are part of the description and condition. Always check your tracking for arrival date.