- Helps you to quickly and easily inspect engine compression on both 4 stroke and 2 stroke engines
- Redesigned and Improved billet gauge manifold with integrated pressure release valve
- Easy to read precision 0-300psi analog gauge with protective rubber boot
- Hose and adapters included for 10 mm, 12 mm and 14mm spark plugs
- Integrated quick disconnect fitting for easy hose installation and removal
- Nylon storage pouch
