Can’t test it so you are buying untested as-is. Let us know if there’s anything we can help you with. This vintage Tach Dwell RPM Tester from Dixson Inc. is the perfect addition to any mechanic's toolbox. It is designed for use on passenger vehicles and is compatible with 4 and 8 cylinder models. The tester features an analog display type and comes with clamps for easy accessory use. The manufacturer part number for this tester is 076-93176 and it was made in the United States. It is a reliable and efficient tool for diagnosing issues in vehicle engines. Whether you are a professional mechanic or a DIY enthusiast, this tester is sure to provide accurate readings to help you resolve any issues.