The Universal Stopper is an indoor/outdoor polycarbonate cover that offers excellent protection against false fire alarms, physical damage (both accidental and intentional), dust and grime, as well as severe environments inside and out. Preventing false fire alarms saves possible municipal fees, disruption, lost revenue, unnecessary gatherings that break COVID-19 social distancing standards, and a loss of productivity from employees, staff members and/or students. The clear cover (STI-13020FR) protects dual action pull stations without restricting legitimate operation. When the cover is lifted to gain access to the actual alarm, a piercing warning horn sounds. Immediate attention is drawn to the area and the prankster will either run or be caught before a false alarm is pulled. This UL/cUL listed cover is flush mounted. Other mounting options, colors and labels are available.