Electronic data processing devices, components and parts; electronic devices for measuring temperature, vibration, sound and environmental conditions; electronic devices for measuring rotation speeds for machines and machine components; electronic monitoring devices; sound monitoring apparatuses and devices; vibration monitoring apparatuses and devices; temperature monitoring apparatuses and devices; sensor monitors; electronic apparatus for monitoring machines and machine components; electronic circuits, including components for electronic circuits; apparatus for monitoring electronic circuit systems; microcontrollers; wireless receiving and communication apparatuses; digital radios for relaying data, including via wireless networks; electronic devices and apparatuses for collecting and processing data; electronic devices and apparatuses for communicating data, including via wireless networks; communications systems for the relaying of data collected from monitors to a computer system; computer software (including application software and downloadable software applications) for receiving, analysing and managing data and other information, including data and information received via wireless networks.