STI’s Universal Stopper low-profile protective cover is an indoor/outdoor low-profile polycarbonate cover that flashes and sounds a warning horn when activated. The cover offers excellent protection against false fire alarms, physical damage, dust and grime, as well as severe environments inside and out. When lifted to gain access to the actual alarm, a piercing warning horn sounds and the cover flashes to help draw immediate attention to the area. The prankster will either run or be caught before a false alarm is activated. The clear cover does not restrict legitimate operation of the fire alarm. Preventing false alarms with STI’s Universal Stopper helps save possible municipal fees, disruption, lost revenue, and a loss of productivity from employees, staff members and/or students. The UL/cUL listed cover is surface mounted. 

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