- This Three-Way tester allows quicker and more accurate testing of exhaust blockages in catalytic converters, mufflers, etc.
- The 2-1/4" special gauge has two multicolored bands for measuring at Idle and 2500 RPM. The scale ranges are in PSI and bar. Boot included on gauge for extra protection.
- Hose is 6 feet, enough length for the Technician to test from the driver's seat.
- Can test in THREE different places: Oxygen Sensor, Exhaust Pipes, and Air Injection System.
