9 Scientific, electrical, optical, weighing, measuring, signalling, monitoring, checking apparatus and instruments, supervision apparatus and instruments; vibration and noise monitoring, vibration monitoring, noise monitoring, measuring and recording apparatus; computer software; computer software being part of computer controlled apparatus or instruments; apparatus for supervising lubrication and grease temperature; vibration sensors; acoustic emissions sensors; vibration management apparatus for machinery; systems, apparatus and instruments for lubrication, fluid management, condition monitoring, bearing condition monitoring and leak detection, monitoring, structural monitoring and testing; structural monitoring and testing, namely, the assessment of pipework vibration assessment and acoustic emissions; handheld computers incorporating vibration data collectors