Weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; computer software; industrial process control software; downloadable computer software for remote monitoring and analysis; monitors [computer programs]; interfaces for computers; system software; accumulators, electric; batteries, electric; solar batteries; batteries; electric power analyzers; engine analyzers; electronic controllers for servo motors; controllers for servo motors; apparatus and instruments for accumulating and storing electricity; apparatus and instruments for controlling electricity; electrical and electronic apparatus for logging data; computer buffers; data buffers; panels for the control of auxiliary engines; panels for the control of emergency engines; electronic control systems for machines