Safety Technology International, Inc. (STI)

Waterford, MI 48327


About Safety Technology International, Inc. (STI)

Safety Technology's products help prevent false fire alarms, theft and vandalism of the things that protect us all.


2306 Airport Rd.
Waterford, MI 48327

More Info on Safety Technology International, Inc. (STI)

New Sti Logo 11142018

STI is a family owned and operated business that began thirty years ago with Jack Taylor's invention of the Stopper Pull Station Protector. Safety Technology now markets more than 1000 products throughout the world. These products help prevent false fire alarms, theft and vandalism of the things that protect us all.

Headquartered in Waterford, Michigan with an office in Worcestershire, England, the STI team has worked hard to continue the work Jack Taylor started. Our first product came directly at the request of a customer, Garnett Hegeman: a high school principal in Detroit, Michigan who had a problem with false fire alarms. Most new products throughout the years are a direct result of these types of requests. If you have a false fire alarm, theft, vandalism or other problem, we invite you to contact us with the challenge of solving it for you.

Products and Press Releases

Alarms, exit

STI's EnviroArmour Enclosure Line

Aug. 25, 2023
STI’s diverse enclosures in a range of sizes offer mounting flexibility, climate control options and power distribution choices to help decrease costs, while also protecting against...
Margie Gobler

New President at STI

March 22, 2021
Safety Technology International President Margie D. Gobler is retiring, and current Vice President of Finance, Operations, and HR Matthew Daniels, has been appointed by the board...
Sti Nt Ss2 No Touch Buttons
Pushbutton/REX buttons

STI No-Touch Button Prevents the Spread of Germs

Jan. 28, 2021
STI’s NoTouch Stainless Steel Button helps to prevent the spread of germs yet makes passing through a door simple. To open a door, a person simply waves their hand in front of...
Sti 9100 Series 5f91ed1915071

STI Locking Thermostat Protector

Nov. 5, 2020
The STI-9100 Series Thermostat Protector with key lock helps protect thermostats and energy sensors. The cover mounts directly over the unit to prevent unwanted access, yet allows...
Sti Wireless Chimes 5f6275f8c46ba
Alarms, perimeter

STI Wireless Doorbell Chime

Oct. 6, 2020
STI’s commercial-grade Wireless Doorbell Chime and Wireless Entry Alert operate from up to 500 feet. These musical wireless chimes are quick and easy to install, with no electrical...
Sti New Sirens Strobes 5ce8431ee5b68
Alarms & Video

STI Sirens/Strobes

June 10, 2019
STI introducesits line of round and rectangular siren/strobes that complement the existing Select-Alert mini controller series. The siren/strobes can be used with cabinets, mounted...
Sti Enclosures
Control panels & accessories

STI's EnviroArmour Enclosure Line

April 2, 2019
Safety Technology International (STI) introduces lockable EnviroArmour Enclosures available in fiberglass or polycarbonate. The non-metallic lockable enclosures are durable and...
STI Mounting Pedestals 5a69feb88bb15 5a7a15b02c3a5
Electronics & Access Control

STI Access Control Pedestals

Feb. 6, 2018
Mounting Pedestals from STI are a convenient way to mount a variety of access control equipment outdoors. These pedestals help provide convenience for security and/or access control...
STI 34159 STI 34119 573e05bcd5ab5 575ec926dd5e8

STI Wireless Battery & Driveway Monitors

June 13, 2016
Safety Technology Intl. (STI)'s Wireless Battery or Solar Driveway Monitor with Single Channel Slave Receiver (STI-34159 or STI-34119) is designed to work in conjunction with ...
6519 54086e214ca0a
Lock shields

Single-Gang Protective Cover

Sept. 4, 2014
STI’s cover helps protect key plates, controllers, locks, etc., against vandalism and accidental damage. Cover and piano style hinge are molded of tough clear polycarbonate. Quick...

Articles & News

Sti Logo
Alarms & Video

2022 Corporate Profile: Safety Technology International

Aug. 2, 2021
Safety Technology International is a longtime trusted manufacturer of door alarms, exit and lockdown buttons and more that help to prevent theft and minimize damage to equipment...
Centrally monitored door alarm

Augmenting Access Control With Exit Alarms

April 1, 2013
An alarm function can be part of an integrated solution such as an exit device, delayed egress, access control, or security alarm.
Typical office entry door
Electronics & Access Control

Winning the Bid with bright blue

June 4, 2012
First, we needed to determine if we could back into the existing card population. Then we specified an access control system to use. Then we needed to design a solution that would...
Wireless supervided 8-channel receiver

Go Wireless With STI

June 16, 2011
One sector of the security industry which is often overlooked by locksmiths is the sale of alarms for residences. One or two large companies are filling TV airwaves with alarm...


Becky Wyble

marketing manager

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All content from Safety Technology International, Inc. (STI)

STI V6400WIR4 55ca15c5d44a0

Wireless Exit Stopper® with Voice Receiver

Aug. 6, 2014
STI's Supervised wireless door alarm helps stop unauthorized exits and entries of fire/emergency doors. When activated, it emits an ear piercing alarm for 30 seconds, three minutes...
Sti 6400 11142016

Exit Stopper® Door Alarm

Sept. 4, 2013
The STI-6400 Exit Stopper® multifunction door alarm helps prevent unauthorized exits/entries of fire/emergency doors. It alerts when protected door opens by emitting 95/105dB ...
V34104 Italk 135 X 135 11185447

Wireless Receiver with English/Spanish Messages

May 21, 2013
STI’s 4-Channel Voice Receiver, Model STI-V34104, sounds voice messages (English or Spanish) when wireless transmission is received. Select from 53 words or 10 tones/tunes. Monitors...
Sti V34600 3x3 10960263

Wireless Doorbell

May 1, 2013
STI's Wireless Doorbell Button with 4-Channel Voice Receiver conveniently lets you know when a guest or customer is waiting. When the doorbell button is activated, it sends a ...
Sti Ss 2105x 10754384
Door Hardware

STI Stopper® Station Push Button

Aug. 2, 2012
This ADA Compliant, multipurpose push button (Part #SS-2105X) covers a wide range of applications. It incorporates a unique, patented polycarbonate design that helps dramatically...
STI Universal button kit
Door Hardware

Universal Button UB-1

June 4, 2012
UL Listed momentary button offers over 300 combinations for the price of a standard one configuration button. Single-gang button has two sets of Form “C” contacts. Faceplate is...
Sti 6400wir4 11567618

Wireless Exit Stopper®

March 29, 2012
STI's supervised wireless door alarm (Part # STI-6400WIR4) helps stop unauthorized exits and entries of fire/emergency doors. When activated, it emits an ear piercing 105 ...
6518 10456220
Door Hardware

Hinged Bopper Stopper®

Nov. 30, 2011
STI's Hinged Bopper Stopper® cover takes hard knocks in stride while helping protect electrical units, push buttons, smaller pull stations, keypads, shutdown switches, volume ...
6200wir4 10325355

Wireless Fire Extinguisher Theft Stopper®

Aug. 16, 2011
The STI Wireless Fire Extinguisher Theft Stopper® with Receiver (STI-6200WIR4) offers a unique steel cable operated switch mechanism, to help stop theft and vandalism of fire ...