3-1 Display
3-2 Power button ( vibration )
3-3 Hold/ESC/Zero button
3-4 Eenter/REC button
3-5 Function/Send button
3-6 Unit/Logger button
3-7 Operation button ( tachometer )
3-8 Surface speed wheel ( contact tach. )
3-9 RPM adapter ( contact tach. )
3-10 Protection cover ( contact tach. )
3-11 Screw for protection cover
3-12 Cable plug ( vibration sensor )
3-13 Vibration sensor
3-14 Magnetic base
3-15 Input socket ( vibration sensor )
3-16 Laser light beam ( photo tach. )
3-17 Photo tach. detecting sensor
3-18 IR probe input socket
3-19 RS-232 output terminal
3-20 Battery cover/battery compartment
3-21 Cone rubber ( RPM adapter )
3-22 Funnel rubber ( RPM adapter )
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