Apparatus and instruments for measuring, monitoring, aligning, damage detection, vibration detection, wear analysis, fault diagnosis and leak detection; tachometers; electronic stethoscopes; electric motor checkers; measuring cables, coaxial cables; cable connectors; adaptors; ultrasonic microphones; earphones; computer software; all for use with industrial plant and machinery; parts and fittings for all the aforesaid goods; all included in class 9.;