Features: Widely Application Universal TU-15 Diesel Compression Tester Guage works on most of diesel cars and trucks. Ideal to test the cylinder pressure of your vehicle. Accurate Detection The wire reinforced hydraulic hose is 16 1/2’’ long. The gauge is 2 1/4’’ and it has a dual scale red and black dial which ranges from 0 - 1000 psi and 0 - 70 bar. Convenient and fast detection speed. Professional manufacturing technology, more accurate detection data. Easy to Use .