Lang Tools (TU-16A) Quick Change Automatic Transmission to Engine Oil Pressure Tester checks engine oil pressure and automatic transmission pressure on both domestic and foreign cars, trucks, motorcycles, and more. The set includes 21 color-coded standard and metric fittings, quick connector gauges (allowing for a fast change), a 2-1/2" gauge with dual scale ranges from 0-100 PSI and 0-28 bar, and a 3-1/2" gauge with dual scale ranges from 0-400 PSI and 0-28 bar.