STI 6521

Bopper Stopper Weathercover

Reviews (4) | Customer Questions (5)


Protect your lock against snow, ice, and rain.

In Stock

SKU: STI-6521S
Your Current Selections:
  • Model #: STI-6521S
  • Protects against vandalism and accidental damage
  • Fast and easy installation
  • Cover is molded from thick smoke color polycarbonate material
  • Stainless steel torsion spring maintains cover in a closed position
  • Comes complete with mounting hardware and gasket
  • Versatile cover protects push button units, smaller pull stations, keypads, electrical outlets, shutdown switches and volume and lighting controls
  • Cover is UV-stabilized
  • Gasket replacement recommended after five years
  • ADA Compliant
  • Polycarbonate rated -40ºF to 120ºF (-40ºC to 49ºC)
  • Lifetime guarantee against breakage in normal use
  • 94V-2 flammability rating
  • Dimensions:  3.31″ W x 5.23″ H x 2.12″ D
Bopper Stopper cover helps protect everything from keyless locks to electrical outlets to volume and lighting controls.  Inexpensive and highly durable, this hinged cover lives up to its name for a wide range of applications.  Can take hard knocks in stride while protecting digital keypads, electrical outlets, smaller size pull stations and push buttons to name just a few.  Both the cover and hinge is molded of polycarbonate material while the hinge springs are formed from stainless steel.  Comes complete with installation screws and gasket. Bopper Stopper is backed by a lifetime guarantee against breakage and damage in normal use.  Cost effective and easy to install.




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4.25 out of 5 stars

4 reviews

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What others are saying

  1. Weathercover Review

    Ty (verified owner)

    Concept and styling are good, but plastic construction (plastic thickness and hinges) is fragile and design could use some improvement (mounting holes need to be countersunk). Also, installation instructions need improvement.

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  2. It Works

    BTWOA (verified owner)

    We have an exterior keyless entry lock and this provides protection from water getting on/in the lock, It Works.
    The lift up section makes getting to the reader simple.

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  3. Good protect from SUN burn out.

    DM (verified owner)

    Lost east and west facing key pads to sun burn out? So trying these! Installation causing me to taper door stop on door frame, base hits door stop.

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  4. Simple, rugged, shade cover.

    Chuck Davidson (verified owner)

    I’ve installed Yale keyless entry on two of my outside doors. The keypads are rated for outside use, so normally that would be the end of things except that I live in central Texas where it is common to have summers with temperatures over 100 degrees for months at a time. Worse, both doors have southern exposures.

    Over the years I’ve learned that nothing withstands the heat here, especially where there is direct sunlight involved. Everything cracks, warps or just stops working, even if rated for exterior use.

    Wanting to keep my expensive keypads working for a few years, I decided to invest in covers, preferably something opaque. Well, I didn’t find completely dark ones, but this cover is as close as it gets and does the job nicely! I’ve noticed the keypads stay cooler and the battery life – hugely affected by heat – is much better with the covers installed.

    Probably not what the manufacturer intended, but it solved my problem perfectly.

    (0) (0)

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Customer Questions & Answers

  1. Q Will this cover the Kwikset 888 deadbolt? answer now
    Asked by Lee Meyer on October 12, 2021 7:09 PM

    Yes, the STI 6521 can be used to cover the keypad on the SmartCode 888.

  2. A

    Yes, this weather cover can be mounted over the YRD-226. 

  3. Q Will this work with a Schlage model #BE375? answer now
    Asked by Kay on January 14, 2021 4:52 AM

    This model will cover the BE375 but will be a bit longer than the keypad itself by ~2.5 inches. The STI-6522 would be a closer fit.

  4. Q Would the cover interfere with WiFi connectivity? answer now
    Asked by Nelson Velazquez on April 27, 2020 8:47 PM

    No, this cover should not interfere with Wi-Fi connectivity. 

  5. Q How does it attach to the door/gate? answer now
    Asked by Mikaela on August 17, 2019 5:04 PM

    Please see the attached installation guide for a diagram on how this unit is installed!STI-6521 Installation Diagram

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