The Snap-On Fuel Injection Pressure Gauge Set MT337B is a high-quality pressure tester designed specifically for gasoline engines. This set includes a dual scale range for ease of use. With a maximum PSI of 100, it is suitable for passenger vehicles. While it does not come with a warranty, the Snap-On brand ensures reliability and durability in automotive tool applications. Ideal for diagnosing and troubleshooting fuel injection systems, this pressure gauge set is a valuable addition to any mechanic's toolbox.