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Did you know?

To construct wire guards we borrowed from nature’s master builder, the spider, creating a patented web of protection.

wire webs


STI Products Work!
Since installing the Stopper II alarm covers in our building, we have had no false alarms this year – saving hours of instructional time.

John Wesson
Fayetteville High School

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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

Covers for
Outdoor Use

Type 4X Protective Cabinets
STI-7520-OW & STI-7521-OW

    • Tough off-white polycarbonate
    • Helps protect electronic devices against the
      sun and weather
    • Protects against vandalism and accidental
    • Available with key or thumb lock
    • Mounts on the wall enabling unit to be
      stored in designated location

    • 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

Metal Cans:
Pick Your Size

Metal Protective Cabinets

    • Protects electrical and electronic
      equipment from hazardous parts
    • Heavy-duty cabinets constructed with
      a powder coated metal to help
      protect against corrosion
    • Continuous piano type hinge
    • Key or thumb lock
    • Seven 1/2, 3/4 inch conduit knockouts
    • Metal meets or exceeds Type 1 requirements
    • UL/cUL Listed

    • More Info

Help Prevent

New Polycarbonate Covers
STI-7700 Series

    • Molded of super tough polycarbonate
    • Protects vulnerable units against vandalism
      and accidental damage
    • Available with an open or enclosed back
      box, with or without lock
    • Strong piano style hinge
    • Fast and easy installation

    • Find out more