– suitable for motorcycle and cars with 14 mm or 18 mm spark plug
– 300 mm flexible hose
– large (ø 70 mm) easy to read scale
– scale: 0 – 21 bar / 21,5 kg/cm² / 300 P.S.I.
– accuracy: +/- 3%
– blow off valve
– to test engine valve and piston rings
– ! Shut down power of ignition coil before working with this tool !