Safety Technology International STI-1250


Weather Stopper without Horn Flush Mount, Clear

Availability: In Stock

Condition: New
Brand: Safety Technology International
Status: Active
SKU: 10525
Manufacturer Part #: STI-1250
Secondary Part #: 20-1102-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.

Additional information

Weight 1.2 lbs
Dimensions 7.00 × 5.00 × 3.20 in

Safety Technology International




Unit of Measurement

EA (Each)

Production Status



  • Cover is UV-stabilized.
  • Proven effective for more than two decades.
  • STI-1250 is for flush mount pull stations (Surface – see STI-3150).
  • The Stopper II design is a registered trade mark of Safety Technology International, Inc.
  • UL Listed to U.S. and Canadian safety standards and NEMA 3R requirements (for standard and custom labeling).
  • Typical working properties of polycarbonate are -40º to 250ºF (-40º to 121ºC).
  • Fits virtually all manual pull stations (see Technical Data Sheet for dimensions)


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STI Stopper II®


STI - Data Sheet