Feature(s)

• Cylinder compression measures to accurately diagnose engine condition. Compatible with most standard spark plug threads. Quick disconnect coupler separates hose from gauge for faster, easier connections to the engine. Push button side release valve allows repeated testing without disconnecting. Bourdon tube movement for accurate readings. Heavy-duty rubber boot protects gauge. Includes adapters for most standard spark plug threads - 10 mm, 12 mm, 14 mm, 14 mm long reach, 18 mm. Gauge features a 2-1/2 in. diameter, easy-to-read white face with standard and metric scales: 0 - 300 PSI and 0 - 2100 kPa, accurate Bourdon Tube movement, and heavy duty rubber boot.