... to use, just clamp over wire Model:EA101Digital Clamp-on Tachometer Features·Conventional 4 cycle or DIS/2 cycle ignition ... capability·Simple to use, just clamp over wire·Work on 1,2,3,4,5,6,7 & 8 cylinder ... engines ·Data hold function·Low and high RPM test ranges·Used to verify ... European directive and standards NEW EASTERN EA101, Digital Clamp-on Tachometer /Car repair tools