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🛑 Stop false alarms before they start — protect your space with confidence!
The STI-1100 Stopper II is a robust, tamperproof polycarbonate cover with a powerful 105 dB alarm designed to prevent false fire alarms without hindering emergency use. Easy to install with a flush mount design, it’s UL/cUL listed and backed by a 3-year guarantee, making it ideal for schools, hospitals, hotels, and public buildings seeking reliable fire safety and peace of mind.
| ASIN | B002RLQG8K |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 957,419 in DIY & Tools ( See Top 100 in DIY & Tools ) 808 in Smoke Alarms |
| Colour | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (98) |
| Date First Available | 23 Jun. 2009 |
| Included Components | Pollycarbonate mounting frame, polycarbonate cover, sounder hood unit, screws, rawl plugs, install sheet |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | STI-1100 |
| Manufacturer | Safety Technology Intl |
| Material | Polycarbonate |
| Part Number | STI-1100 |
| Plug profile | Wall Mount |
| Power Source | Corded Electric |
| Product Dimensions | 12.7 x 8.1 x 16.5 cm; 453.59 g |
| Sound level | 105 Decibels |
| Style | Alarms |
| Voltage | 12 Volts (DC) |
K**Y
Easy to install, great quality thick durable plastic as described, and the alarm if activated; will get your attention. It’s not a “one size fits all” fire alarm pull stations; we made some modifications and made it work in the space we had. This is a great cover to use in the prevention of false alarms happening, a great investment for commercial properties!
H**.
It matched the ad. It was simple to install! And the horn was great as we expected!
K**N
No more prank alarm after installing this
D**S
This was great for the job. Less than having a professional install it was
T**Y
When pulled deliberately or by accident, it sends a loud signal.
Trustpilot
1 week ago
2 months ago