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


Extend Chime

Testimonials


STI Products Work!
Have eliminated false alarms in the high school. Allows for immediate response.

Chip Antonelli
Former Principal
George F. Baker High School

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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

Wireless
Convenience


Wireless Driveway Monitor
with Talking Receiver STI-V34150


    • Sends wireless signal to voice receiver when
      a vehicle enters or leaves the driveway
    • Quick and easy to install
    • Operates up to 1000 feet (line of sight)
    • Receiver offers 10 tones/tunes and 53
      selectable words (in English or Spanish)
    • Weather resistant, battery powered
    • Will not be triggered by animals, people
      or shadows

    • Find out more

Single-Gang
Protective Cover


Mount Directly to an Electrical Box
STI-6519


    • 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

Easily Connect
to Control Panel


Wireless Universal Alert with
Single Channel Slave Receiver


    • Know when a monitored site is tripped
    • Small sized receiver works in conjunction
      with a control panel
    • Has a Form “C” contact which 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

Exit Button with
Alarmed Shield


SS-21A4EX


    • Protective shield helps prevent accidental
      activation, yet allows legitimate button use
    • Local alarm sounds when cover is lifted,
      drawing immediate attention to the area
    • Momentary Mushroom button has
      “EMERGENCY EXIT” label
    • When activated, button will perform
      designated action (i.e. open door)


    • More information