Latest & Greatest from STI

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Did you know?

Can’t hear your existing doorbell in your basement, garage, shed, etc. With wireless ease extend the chime to greater distances.

Extend Chime


STI Products Work!
Our problems came to a halt after installation of your Stopper IIs.

Rudy  Ramirez
Indio High School

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  Fire Products Theft Vandalism polycarb covers wire guards buttons switches homework products  
  Fire Products Alarms & Chimes Polycarbonate Covers Wire Guards Buttons and Switches Home & Work Products  

About STI

False fire alarms and the theft and vandalism of protection devices can be a serious issue, compromising safety as well as costing money.

STI has been producing safety technologies that stop false fire alarms and prevent theft and vandalism for thirty years. We now market more than 1000 products worldwide. Our range includes fire alarms protection devices, stopper covers and enclosures, wire guard protectors and security protection products.

Contact us now to discuss how we can solve your specific problems.

STI Stopper II

Protective Cover

Mount Directly to an Electrical Box

    • Mounts directly through product mounting
      plate to an electrical box
    • Included mounting frame eliminates the need
      to drill additional holes in the wall
    • Brother to the Bopper Stopper®
    • Hinged cover takes hard knocks in stride
      while helping to protect smaller-sized
      electrical units

    • Find out more

Protection for
Mini Smoke

Steel Web Stopper®

    • Protects against vandalism and damage
    • Constructed of 9-gauge coated steel wire
    • Fast and easy installation
    • Simple removal for servicing detector
    • Three year guarantee against breakage in
      normal use

    • learn more

Doorbell with
Talking Receiver

Wireless Doorbell Button

    • Receiver sounds tones/tunes or talks when
      doorbell button is pressed
    • Create custom messages by selecting up to
      four words (in English or Spanish)
    • Up to 500' range
    • Button is water/weather resistant for
      outdoor use
    • Supervised for battery and connection
    • 433MHz
    • Low battery indicator

    • Find out more

1000’s of Buttons
Simple Search

Announcing Easy Button Selection

    • The “FastFind” option makes button
      selection easy
    • Search by color, cover, button activation
      and label message
    • Choose an exact button from thousands
      of options
    • Easy part number selection

    • Refine Search Video

      Find out more