The Mall of Qatar is the largest shopping center in Qatar, with an estimated 20 million customers anticipated annually. 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. Such things as vandalism, remodeling, and improper maintenance procedures can also damage fire protection equipment. 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.