The Fire Technician III provides service inspection, testing, maintenance, and repair for fire equipment which typically includes but is not limited to portable and semi-portable fire extinguishers, lifesaving equipment, fire and gas detection systems, foam systems, dry chemical systems, navigational aids, gaseous suppression systems and water-based fire protection systems. Performs shop service and/or field inspection, testing, maintenance, and repair of fire equipment which may include customer portable and fixed fire extinguisher systems and components, lifesaving and navigation aid equipment, fire detection and alarm system components, fixed gas detection systems components and foam, dry chemical and gaseous fire suppression systems and components.