Discover the reliability of Snap-on with the vintage CT24C circuit tester, designed to diagnose electrical systems in both heavy-duty and passenger vehicles. This tool is an essential for professionals looking to ensure the integrity of their vehicle's electrical components, with a robust 24-volt capacity that can handle a wide range of tests. Crafted with the quality expected from Snap-on, the CT24C is a single-unit tester that has been proudly made in the USA. Its straightforward design and ease of use make it a practical addition to any mechanic's toolkit. The manufacturer part number for this item is CT24C, a testament to its authenticity and a guarantee of its performance.