Stopper II without Horn with Spacer

Stopper II Protective Polycarbonate Cover

Helps stop false fire alarms

This unique device has helped prevent false fire alarms around the world for more than 35 years, without restricting legitimate operation of devices. Ideal for schools, colleges, hospitals, nursing homes, hotels and all public buildings where there is a history or a threat of false fire alarms.

Key Features for the Stopper II Protective Cover

  • Helps stop false fire alarms without restricting legitimate alarms from being pulled
  • Proven effective for more than 35 years
  • Can guard against physical damage to a manual pull station
  • Without horn, with clear spacer for surface mounting
  • Cover is connected to the frame by a cable
  • When cover is lifted it drops off of the frame
  • Does not restrict legitimate fire alarms from being activated
Stopper II

Stopper II Spacer
Included Spacer Allows Retrofits

Included conduit spacer adds two inches of depth to the protective cover. Allows the Stopper II to retrofit to existing pull stations.

  • Mounts directly to the wall over an existing pull station

35+ Years of Helping Stop False Fire Alarms

Time-Tested Protective Polycarbonate Protector

Stopper II consists of a clear, tamperproof, tough polycarbonate shield and frame. The cover accommodates most manual pull stations. Ideal for schools, colleges, hospitals, nursing homes, stores, hotels and public buildings of almost every kind where there is a threat of false alarms.

  • Cover helps deter pranksters from triggering false fire alarms
  • Helps reduce unnecessary business/school interruptions or evacuations
  • Does not restrict legitimate fire alarms from being activated
Stopper II with Spacer

Safety Technology International

STI is a global manufacturer of protective enclosures/cages and push buttons. Our products help prevent false alarms, deter theft and minimize vandalism of fire alarm devices, communication routers and other equipment. Alarms for cabinets, extinguishers and exit doors. So much more!

Safety Technology International, Inc. 'We protect the things that protect you.'

Product Description

Safety Technology International, Inc. -STI 1230 Stopper II without Horn with Clear Spacer, Protective Polycarbonate Cover - This unique and patented device has been helping stop false fire alarms around the world for almost 30 years without restricting legitimate alarms. This tamperproof, tough polycarbonate cover is ideal for schools, hospitals, nursing homes, stores, hotels and public buildings of almost every kind. Cover is connected to the frame by a cable; when cover is lifted it hangs from the frame by its cable. 3 year guarantee against breakage in normal use. UL Listed to U.S. and Canadian safety standards. Polycarbonate rated -40 degrees F to 250 degrees F (-40 degrees C to 121 degrees C). Safety Technology International, Inc. "We protect the things that protect you"