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Did you know?

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

Universal Stopper


STI Products Work!
We’re very pleased with the performance of our Stopper II units. Our Alzheimer patients were pulling the fire alarms and that has ceased to be a problem.

Steve  Rykiel
NHC Healthcare of Orlando

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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

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

    • 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

Cover with Enclosed
Flush Back Box

Universal Stopper ®

    • Indoor/outdoor polycarbonate cover
    • Protects against vandalism and damage
    • Sized to fit most pull stations
    • High strength continuous hinge
    • Low profile, ADA Compliant

    • Find out more

Go Smart.
Go Wireless.

Wireless Exit Stopper®
with Talking Receiver

    • Wireless multifunction door alarm alerts to
      any unauthorized exits/entries through
      emergency exit doors and rear doors
    • When sensor is activated, it sends a
      wireless signal to the talking receiver
    • Receiver offers ten tones/tunes and 53
      selectable words (in English or Spanish)
    • Has a 1000 foot range, 433MHz
    • Supervised for battery and connection

    • Prevent unauthorized use