Safety Technology International STI-1150

Stopper II with Horn Flush Mount, Clear

  • Factory New
Brand: Safety Technology International Part #: 10515 Categories: , , Manufacturer Part #: STI-1150Secondary Part #: 20-1098-R


This protective cover has been helping to stop false fire alarms around the world for more than 35 years, without restricting legitimate alarms. all models offer excellent protection against physical damage (both accidental and intentional) and several against severe environments both inside and out. It is ideal for schools, colleges, hospitals, nursing homes, stores, hotels and public buildings of almost every kind where there is a threat of false alarms.


Weight 1.00 lbs



Safety Technology International

Production Status



  • Cover is UV-stabilized.
  • Designed for outdoor use.
  • 95 or 105 dB self-contained alarm. Complete with battery.
  • STI-1150 is for flush mount pull stations (surface – see STI-1155).
  • UL Listed to U.S. and Canadian safety standards
  • Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C).
  • Fits virtually all manual pull stations (see Technical Data Sheet for dimensions).


STI Stopper II
Safety Technology International – Data Sheet