This Autolite High Energy Ignition Tester is the perfect addition to any mechanic's toolkit. With its reliable performance and easy-to-use design, it's a must-have for anyone who wants to ensure their ignition system is running smoothly. Made in the United States and backed by a manufacturer part number of SP3371, this unit is a true gem for anyone who values quality and precision. Whether you're a professional mechanic or a DIY enthusiast, this ignition tester is sure to meet all your needs. It comes with no warranty, but that's only because it's a unit that's been in stock for a while. Don't miss your chance to add this Autolite High Energy Ignition Tester to your collection today!