This automotive compression tester works with gasoline engines. It fits most spark plug holes.  

Features:
2.5'' diameter gauge with dual color coded scale.
Air gauge with quick coupling & pressure release button.
10" durable rubber hose with M14*1.25 / M18*1.5 adapter.
6" heavy-duty stem with rubber cone cap fits different spark plug holes.
Blow moulded carrying case for easy transportation and storage.

Specifications:
Case Color: Red
Material: Plastic & Metal
Dual Gauge Readings: 0~300psi, 0~20KPaX100
Case Size: Approx. 32.5 * 14 * 4cm / 12.8 * 5.5 * 1.6in
Case Weight: Approx. 730g / 1.6lb

Package List:
1 * Gasoline Compression Tester