u瞳秤 "Compression tester"
suitable for all types of spark plugs
Helps to find faults in valves piston rings, cylinder bores and head gaskets, also for crankshaft seals in two-stroke engines.
Mechanical manometer for petrol engines
? 300 mm long flexible test hose
? one adapter each for 14 mm and 18 mm spark plug thread
? easy to read dial gauge with a scale from 0 to 21 bar (0 to 300 psi)
? the built-in decompression valve allows repeated measurements without dismantling.