•Color-coded quadruple calibrations with 0-300 PSI, 21 kg/cm², 21 bar & 2100 kpa.
•Universal rubber cone adaptor to fit all spark plug holes.
•Full 2-1/2” scale.
•Simple press-on type for worn or defective rings, valves, pistions and cylinders.

•Color-coded quadruple calibrations with 0-300 PSI, 21 kg/cm², 21 bar & 2100 kpa.
•Universal rubber cone adaptor to fit all spark plug holes.
•Full 2-1/2” scale.
•Simple press-on type for worn or defective rings, valves, pistions and cylinders.