Doha Festival City is the largest entertainment, fashion and dining destination in Qatar. The mall has more than 400 carefully selected international and local brands, including some of the most anticipated names, many of which made their Qatar debut, such as Harvey Nichols, Charlotte Tilbury, Kiehl’s, Dior Beauty Boutique, and ACE. Fire Alarm systems are expected to help protect people, property, and assets. As with any other system, electronics and other components can degrade over time and compromise the system’s operation. Dust, dirt, and other contaminants can cause problems with smoke detectors. Test and calibration of alarm sensors, simulation of inputs and testing the annunciators, setting sensitivity, Checking the battery for corrosion and expiration date are procedures under the fire alarm maintenance.