The S & G Tool-Aid 33980 Fuel Injection Pressure Tester is a comprehensive tool set designed for passenger vehicles. This kit includes two gauges, hoses, fittings, and a carrying case for easy storage and transportation. With a maximum PSI of 100, this dual scale range tester accurately measures fuel injection pressure to help diagnose and repair issues with precision and efficiency. Perfect for mechanics looking to efficiently detect leaks and ensure optimal engine performance in vehicles. This is new, but open box. This has never been used and the small pieces are still sealed in the plastic bag.