provide comprehensive fire protection services for commercial and residential buildings in Phoenix and Tucson. Our services include alarm system installation and maintenance, as well as repair and inspection services to guarantee safety from fire-related

Global Systems United is an Arizona-based company offering a , monitors, detectors, sensors, CO2 leak detection, and fire alarm systems. We provide installation and maintenance for all types of facilities

system design, installation, maintenance, testing, and sales of fire alarms, smoke detectors, carbon monoxide detectors, burglar alarms, surveillance systems, card access controls systems