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The Universal Stopper is made from the same material as football helmets - polycarbonate!


Universal Stopper

Testimonials


STI Products Work!
We’ve suggested the use of STI Stopper II units for problems with false fire alarms in schools as well as well as apartments where pull stations are located in areas with limited visibility.

Darren Drake
Fire Marshal
Napa Fire Department

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  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

Doorbell with
Talking Receiver


Wireless Doorbell Button
STI-V34600


    • 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

Connect to
Control Panel


Wireless Driveway Monitor
with Single Channel Slave Receiver


    • Know when someone enters or leaves
      the driveway
    • Small sized receiver works in conjunction
      with a control panel
    • Receiver's Form “C” contact enables the
      device to interconnect with another system
    • Operates up to 1000’ (line of sight)
    • Form “C” relay, 12 VDC operation
    • Momentary or latching


    • More information

Select-Alert Alarm
Mini Controller


Helps Stop Unauthorized Use
STI-SA5000-W


    • Multipurpose strobe and alarm
    • Helps stop unauthorized use of devices
    • Available in five colors
    • Flashing LED and alarm offers a variety of
      uses in emergency situations
    • Offers a choice of 32 distinct tones
    • Timing choices: 15, 30 or 60 seconds
      or continuous

    • Find out more