STI 1200A Stopper II with 4" Enclosed Backbox







STI 1200A Stopper II with 4"  Enclosed Backbox

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This surface mounted version of the patented Stopper II has a four inch deep enclosed backbox which allows it to be installed in wet or wash down areas (such as kitchens, cafeterias, meat packing plants, showers, outdoors, etc.). It helps protect against physical damage (both accidental and intentional), dirt and grime. The enclosure is not locked which makes it easy to open for legitimate operation.

This product consists of a clear, tamperproof, super tough polycarbonate cover, housing for an instructional operation label, gasket, NEMA 4X conduit hub and a four inch deep NEMA 3R backbox. The standard STI-1200A accommodates most manual pull stations and is marked with an "IN CASE OF FIRE" message, but can be custom labeled and used to protect many other devices. This cover allows an outdoor rated addressable manual pull station to be installed in wash down areas.


  • Cover includes four inch deep backbox.
  • For use in wet or wash down areas, backbox rated to NEMA 3R Standards.
  • All initiating stations are required to be outdoor rated by UL
  • Proven effective for over 30 years in helping stop false fire alarms without restricting legitimate alarms.
  • Can be used as a guard against physical damage.
  • The Stopper II design is a registered trade mark of Safety Technology International, Inc.
  • UL Listed for indoor/outdoor use and ADA Compliant for operation.
  • Not locked; easy to open.
  • Three year guarantee against breakage of polycarbonate in normal use.
  • The thick, clear polycarbonate cover is UV-stabilized.
  • Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C).
  • Comes standard with an "IN CASE OF FIRE - LIFT COVER PULL FIRE ALARM" label.
  • Custom labeling available (incurs a fee)
  • Model: STI 1200A
  • 0 Units in Stock
  • Manufactured by: STI Safety Technology Int'l

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