STI | Security Technology International, Inc.

The Safety Technology International 6516 Mini Bopper Stopper with Spring-Loaded Hinge is a vigilant protector of the elements for keypad locks. Designed with heavy-duty clear, polycarbonate material to withstand ice and snow from susceptible keypads, the easy to install  STI-6516 protects a wide range of security equipment from harsh outdoor conditions.

Applications for the STI-6516 Mini Bopper Stopper with Spring-Loaded Hinge include keypad locks in exterior doors in extreme weather climates.

STI-6516 Mini Bopper Stopper with Spring Loaded Hinge


  • Protects a wide range of equipment against vandalism and accidental damage
  • Fast and easy installation
  • Cover is molded from thick clear polycarbonate material
  • Helps stop ice and snow from making keypad units hard to operate
  • Can be used over volume or lighting controls
  • Stainless steel torsion spring maintains cover in a closed position
  • Available in clear or smoke color
  • Cover is UV-stabilized
  • Comes complete with mounting hardware and gasket
  • UL Listed to U.S. and Canadian safety standards
  • Typical working properties of polycarbonate are -40° to 250°F (-40° to 121°C)
  • Three year guarantee against breakage of polycarbonate in normal use
  • 94V-2 flammability rating

To place your order for a STI-6516 Mini Bopper Stopper® with Spring-Loaded Hinge or for a quote, contact your local IDN Branch.

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Kwame Shorter is the Digital Communications & Website Specialist at IDN, Inc.