Ключевые слова: alarm, alarm system, alert, background, bell, box, break, button, closeup, concept, construction, control, corridor, danger, design, design elements, electric, electrical, electricity, elements, emergency, equipment, fire, fire alarm, fire alarm system, glass, industrial, industry, metal, object, panel, protection, pull, push, red, rescue, safe, safety, safety symbol, security, sign, switch, symbol, system, technology, technology concept, view, wall, warning, wiring,