This great quality BGS Compression Tester is suitable for motorcycle and cars with 14mm or 18mm spark plugs.

• 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!