Compression Tester M14 + M18

• suitable for motorcycles and cars with M14 mm or M18 mm spark plug
• 300 mm long, flexible test hose
• large (Ø 70 mm) easy to read scale - accuracy: +/- 3%
• gauge range: from 0 to 21 bar / 21.5 kg/cm² / 300 PSI
• blow off valve
• to probe engine valve and piston rings
• Application note: Shut down power of ignition coil before working with this tool!

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