STI

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When purchasing a product, price is the consumer's primary concern. At present, STI has 306 products for sale. STI products range in price from $9.09 to $103.22, and the average price of all the products is about $54.5.

We found that most of the STI products are manufactured by Safety Technology Intl. The manufacturer provides STI with a steady supply of products, and they have a good cooperative relationship with each other.

You can confidently purchase STI products on Amazon.com. The brand holds an average rating of 4.6, testifying to its excellent reputation.

STI Best Sellers

Last Updated: Jan 9, 2026

Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits or Entries Through Emergency Doors

Industrial Warning Alarms

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Highly visible "stop sign" design acts as a deterrent

Virtually indestructible polycarbonate housing

Detects both unauthorized exits and entries

Less expensive than heavy horizontal bar type units

3 year guarantee against breakage of polycarbonate in normal use (one year on electro mechanical and electronic components).

Safety Technology International, Inc. STI-13010FR Universal Stopper®, Flush Mount and Fire label, Indoor/Outdoor Protective Polycarbonate Cover for Pull Stations or Call Points, Red

Smoke Detectors & Fire Alarms

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Indoor outdoor cover protects against vandalism and accidental damage

Protects pull stations keypads intercom stations emergency buttons electrical light switches duplex plugs etc

Cover molded from thick tough polycarbonate material. Maximum protrusion is 4 inches deep

High strength continuous hinge

UL/CUL listed, ADA Compliant

Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover , Red

Smoke Detectors & Fire Alarms

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Protective cover helps stop false fire alarms

Super tough clear polycarbonate tamper proof cover and piezo horn

Horn sounds when cover is lifted to gain access to alarm

Cover is connected to the frame by a cable

3 year guarantee against breakage of polycarbonate in normal use, 1 year on electronics

Safety Technology International, Inc. STI-6519 Single-Gang Hinged Clear Protective Polycarbonate Cover Multipurpose with Mounting Plate

Wall Plates

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Cover and frame are molded from thick clear polycarbonate material

Fast and easy installation

Indoor cover protects against vandalism and accidental damage

Mounting plate molded into frame

4.46 in H x 3.275 in W x 1.03 in D

Safety Technology International, Inc. STI-1230 Stopper II without Horn with Clear Spacer, Protective Polycarbonate Cover

Smoke Detectors & Fire Alarms

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Protective cover helps stop false fire alarms

Super tough clear polycarbonate tamper proof cover

Cover is connected to the frame by a cable

Cover is UV-stabilized

3 year guarantee against breakage in normal use

Safety Technology International, Inc. STI-6402 105 dB Exit Stopper® Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery

Home Security Systems

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Alarm alerts to unauthorized exits or entries through protected doors

Unit is completely self-contained and easy to install

Sounds a powerful 95 or 105 db alarm when Activated

May be mounted on top, right, left or next to almost any door

Dimensions - 5 in. diameter x 1.875 in. depth

Safety Technology International, Inc. STI-1130 Stopper II with Horn, Clear Spacer and Protective Polycarbonate Cover

Smoke Detectors & Fire Alarms

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Protective cover helps stop false fire alarms

Super tough clear polycarbonate tamper proof cover and piezo horn

Horn sounds when cover is lifted to gain access to alarm

Cover is connected to the frame by a cable

3 year guarantee against breakage in normal use

Safety Technology International, Inc. STI-9621 Motion Detector Damage Stopper Steel Wire Cage for PIRs, Approx. 7" x 5.75" x 4.5"

Home Security Systems

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Protection for pir units against vandalism and accidental damage

Constructed of 9-gauge coated Steel wire

Does not interfere with the effective range of any protected motion detector

Fast and easy installation

Simple removal for servicing the detector

Safety Technology International, Inc. STI-3300 Wireless Doorbell Extender with Receiver Connects to Existing Hardwired Doorbell, Part of Musical Wireless Chime Series

Door Bells Chimes

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Wires onto existing doorbell chime box inside the building or home

Extends the range of which you can hear existing doorbell unit for example to a garage or basement.

Up to 500' from the chime to receiver

Receiver has low and high volume adjustment

UL & CUL Listed, FCC & IC Compliant. Limited one year warranty.

Safety Technology International, Inc. STI-1200 Stopper II without Horn Flush Mount, Protective Polycarbonate Cover

Smoke Detectors & Fire Alarms

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This product is highly durable

Easy to use

This product is manufactured in United States

Protective cover helps stop false fire alarms

Super tough clear polycarbonate tamper proof cover

Cover is connected to the frame by a cable

Cover is UV-stabilized

3 year guarantee against breakage in normal use

Safety Technology International, Inc. STI-13020FR Universal Stopper® with Horn, Flush Mount and Fire Label, Indoor/Outdoor Polycarbonate Protective Cover for Pull Stations or Call Points

Smoke Detectors & Fire Alarms

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Indoor outdoor cover protects against vandalism and intentional or accidental damage

105 db self-contained alarm helps scare off pranksters and vandals

Protects pull stations and call points from damage

Cover molded from thick tough polycarbonate material

Safety Technology International, Inc. STI-9640 Exit Sign Damage Stopper, Protective Coated Steel Wire Guard

Commercial Lighted Exit Signs

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Guard protects a wide range of exit signs from vandalism and accidental damage

Super tough construction of 9-gauge polyester coated steel wire

Fast and easy installation

All installation hardware is included

Three year guarantee against breakage in normal use

Product dimensions 10.5 in H x 13.5 in W x 2.75 in D

Safety Technology International, Inc. KIT-H19032 Two Replacement Keys #2341

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Two replacement keys (#2341)

For use with STI Exit Stopper models STI-6400, STI-6402, STI-6403 and STI-6404 (red and green units)

Assists in turning the Exit Stopper alarm on and off

Safety Technology International, Inc. STI-9601 Steel Web Stopper®, 9 Gauge Corrosion Resistant Polyester Coated Cage, Flush Mount, 2.75" Depth

Smoke Detectors & Fire Alarms

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UL listed cage for areas where abuse to smoke detectors is severe

Constructed of 9-gauge Steel wire with corrosion resistant polyester coating

Cover is for flush mounted smoke detectors

Simple removal for servicing the detector

Dimensions – 8.25” diameter x 2.75”H

SS2231PO-EN STI Yellow Indoor/Outdoor Flush Turn-to-Reset Stopper Station with EMERGENCY POWER OFF Label English

Pushbutton Switches

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Turn-to-Reset

Indoor/Outdoor

EMERGENCY POWER OFF Label

Flush Mount

Yellow Stopper Station

Safety Technology International, Inc. STI-9729 Steel Wire Guard Damage Stopper®, Cube Cage Approx. 7" x 7" x 7"

Commercial Emergency Light Fixtures

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Guard protects a wide variety of devices against theft and vandalism

Constructed of 9-gauge steel wire with corrosion resistant Polyester coating

Fast and easy installation with all screws and anchors provided

Simple removal for servicing the detector

Dimensions – 8.78” W x 7” H

STI STI-7730 Polycarbonate Protective Cover

Smoke Detectors & Fire Alarms

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Made in United States

STI STI-3100 - Conduit Spacer-Clear for Stopper II Series

Smoke Detectors & Fire Alarms

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STI STI-3100 - Conduit Spacer-Clear For Stopper II Series

#1 Supplier for Fire Safety Equipment in North America. Our company is dedicated to help and supply your fire equipment needs with the best prices Worldwide.

We have the most dedicated customer service team to help you with any question regarding our products and your orders.

Safety Technology International, Inc. SS2209PO-EN Stopper® Station Push Button, Turn-to-Reset, Yellow, Emergency Power Off Label

Pushbutton Switches

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Multipurpose push button switch covers a wide range of applications both indoors and outdoors

Turn-to-Reset button

Raised EMERGENCY POWER OFF label

Illumination can be used as a status light, indicating activation, and allows the button to be easily located in a dark corridor

LED illuminates green, red or white

Unique, curved design helps protect against accidental activation

Station housing molded of tough polycarbonate

Two (2) Form “C” contacts, 10A @ 125/250 VAC, ½ HP, 6A @ 30 VDC

UL/cUL Listed, ADA Compliant

STI FAQs

Is STI Legit?

Yes, STI is a legitmate brand on Amazon. After conducting a comprehensive analysis of 3,650 customer reviews for STI products on Amazon, we have determined its average rating. With a strong performance and good quality, STI has received an average rating of 4.6 from numerous buyers, indicating that STI are trustworthy and live up to their claims. Therefore, it is safe to make purchases from STI on Amazon.

Amazon has strict policies and safety measures in place that ensure only legitimate sellers and products are allowed on their platform. It also provides a secure payment gateway and offers buyer protection, ensuring your transaction is safe. In the unlikely event that there's an issue with your purchase, Amazon's customer service and return policies are designed to protect your interests.

How to find more STI products?

If you're interested in STI and want to find more STI products, you can follow the steps below:

Go back to FindThisBest's homepage.
Type STI in the search box and hit Enter to see the search results.
Find and click the correct STI to go to the new page.
Select the products you want in the STI buying guide, and take a glance at the prices and features of the products.
View the products interest you on Amazon to read the customer reviews and check the ratings. Besides, you can hit the "brand" to find more STI products.

How does findthisbest choose the top STI products?

We analyze millions of STI products reviews and customer reviews to recommend the best picks for most consumers. We have a professional team with decades of experience to test the products, which can help ensure that we provide our readers with accurate advice and best recommendations.

How can I purchase STI products via FindThisBest?

Go to the STI page.
Select the product you want in the STI buying guide, and then view the product on Amazon. For example, if you are interested in the top 1 product Safety Technology International, Inc. STI-6400 Exi..., you can view it on Amazon page.
Place your order on Amazon.

Who are the manufacturers of the STI products?

Most of the STI products are produced by Safety Technology Intl. The manufacturer provides STI with a steady supply of products, and they have a good cooperative relationship with each other.

What is the purpose of your brand guide?

Our mission is to provide you with the most up-to-date and objective information about the STI products, helping you make more informed buying decisions. We recommend best choices of the products from the STI brand, helping you make better shopping choices with less time and energy.

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