





🛡️ Protect your alarms, prevent false panic, and stay one step ahead!
The STI-13020FR Universal Stopper® is a robust, tamperproof polycarbonate cover with a built-in 105 dB alarm horn designed to prevent false fire alarms. Suitable for indoor and outdoor use, it features UV stabilization, ADA compliance, and UL/CUL certification. Easy to install with included hardware and battery, it protects pull stations and emergency devices from vandalism and accidental damage while ensuring legitimate operation.




| ASIN | B00HWXGGHE |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #574,655 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #536 in Smoke Detectors & Fire Alarms |
| Brand | STI |
| Color | 2.125 |
| Customer Reviews | 4.6 4.6 out of 5 stars (26) |
| Date First Available | July 21, 2014 |
| Exterior Finish | Polished |
| Finish | Polished |
| Hand Orientation | Ambidextrous |
| Handle Attachment Mechanism | Screws |
| Handle Compatibility | Fire alarm pull stations and emergency devices |
| Handle Material | Polycarbonate |
| Handle/Lever Placement | In-wall |
| Included Components | Cover with Horn^Screws (4)^Wall Anchor(4)^Installation Sheet^9V Alkaline Battery |
| Is Discontinued By Manufacturer | No |
| Is Weight Bearing | No |
| Item Depth | 1.5 inches |
| Item Package Quantity | 1 |
| Item Weight | 11.2 ounces |
| Item model number | STI-13020FR |
| Lock Type | Push Button Lock |
| Manufacturer | Safety Technology International, Inc |
| Material | Polycarbonate |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | STI-13020FR |
| Product Dimensions | 8.12"L x 5.31"W |
| Size | 8.12 inches x 5.31 inches |
| Special Feature | Durable, Easy to Install |
| Special Features | Durable, Easy to Install |
| UPC | 662950130031 |
| Unit Count | 1.0 Count |
| Warranty Description | No Warranty |
W**L
STI-13020FR Fire Alarm Pull Station Covers
This cover by Safety Technology Int. does what it is suppose to do. Sounds an audible when cover is lifted good chance of preventing a false call to fire department. Just have to wait many months for them. I ordered 3 each STI-13020FR stoppers on Sept. 16 and 1 more on Sept.18th and it is now Oct 22 and they (Amazon) might be shipping another one soon. When I placed the orders 2 were supposedly in stock. But still took weeks for them to ship only 1 of them out.
B**O
Love the pin that stops the horn while you are installing. Others have a switch you can accidentally hit and be tortured by the sound
Trustpilot
1 month ago
2 months ago