Apparatus and instruments for measuring hydraulic pressure in industrial machinery and engines in the mining, construction, rail, marine and manufacturing industries; Apparatus and instruments in the nature of recorded computer software and hardware for signaling, detecting, testing and inspecting hydraulic pressure in industrial machinery and engines in the mining, construction, rail, marine and manufacturing industries; Apparatus and instruments in the nature of electronic sensors for signaling, detecting, testing and inspecting hydraulic pressure in industrial machinery and engines in the mining, construction, rail, marine and manufacturing industries; gauges, namely, pressure gauges, hydraulic gauges, temperature gauges, movement gauges, micrometer gauges, vacuum gauges, torque gauges and tachometers; electrical circuits for hydraulic control; electrical sensor apparatus, namely, sensors for measuring pressure, temperature, movement, vibration, or speed; electrical transducers; pressure transducers and transmitters that convert hydraulic or pneumatic pressure into analog electrical signals for monitoring and controlling hydraulic or pneumatic systems; recorded computer software and hardware for use in measuring pressure, temperature, movement or speed; computer hardware and recorded software for use in receiving, reading, analyzing, and reporting the information from all of the aforementioned gauges, transducers, and sensors, sold as a unit; parts and accessories for the aforementioned goods being computer peripherals; parts and accessories for the aforementioned goods being electrical adaptors, electric and radiofrequency couplings, measuring couplings for measuring temperature, pressure, quantity and concentration of fluids in hydraulic or pneumatic systems, and carrying cases specially adapted for carrying all of the previously aforementioned goods