Petrol Engine Compression Pressure Tester Kit has a quick and convenient pressure relief button. Quickly and accurately measure the cylinder pressure. Comes in a portable case that will hold all accessories in place and protect them during storage and transportation.

• 2.5'' diameter gauge with dual color coded scale.
  

• Dual Gauge Readings: 0~300psi, 0~20KPaX100
  

• Flexible rubber hose length: 11.8 inch
  

• Spark plug adapter diameter: 14 mm / 18mm
  

• Total Length: 34 cm / 13.39 inch