Monitoring equipment, namely, direct and indirect load weighing systems comprised of weighing instruments for use in monitoring loads versus safe working limits; monitoring equipment, namely, a microprocessor-based central processing unit in the nature of a circuit board assembly and an operator digital display console in the nature of a video display monitor for both local and remote data display; monitoring equipment, namely, angle sensors in the nature of inclinometers, electronic level sensors for sensing angles and inclination, theodolites, and protractors for measuring angles and geometry of machinery components relative to the horizon and each other; monitoring equipment, namely, length sensors in the nature of encoders for measuring the extension of telescoping booms being parts of machines; monitoring equipment, namely, limit-sensing electric and electronic proximity switches for determining maximum and minimum travel limits; optional computer printers; optional signal conditioning units for converting transducer outputs to voltages, current-loops, or frequencies, for industrial process control; electrical interconnecting cables, for hoists, cranes and loaders