


🚨 Stop false alarms before they start — protect your space with confidence!
The STI 1100 Stopper II is a patented, flush-mount fire alarm cover featuring a tamper-proof polycarbonate shield and a powerful 105 dB piezo horn that sounds when the cover is lifted. Designed to prevent false alarms in high-traffic environments like schools and hospitals, it includes a cable tether for secure access and comes with a 3-year warranty on the cover and 1 year on electronics. UL Listed and built to withstand extreme temperatures, it’s the trusted choice for professional safety management.
| Brand | STI |
| Style | Alarms |
| Power Source | Corded Electric |
| Color | Red |
| Product Dimensions | 30"D x 8"W x 6"H |
| Item Weight | 1 Pounds |
| Global Trade Identification Number | 00662950110002 |
| Number of Items | 1 |
| Manufacturer | Safety Technology Intl |
| UPC | 783961693411 662950110002 |
| Part Number | STI-1100 |
| Item Weight | 1 pounds |
| Item model number | STI-1100 |
| Is Discontinued By Manufacturer | No |
| Voltage | 12 Volts (DC) |
| Item Package Quantity | 1 |
| Sound Level | 105 Decibels |
| Mounting Type | Wall Mount |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Warranty Description | Lifetime guarantee against breakage of the polycarbonate housing in normal use (one year on electronic components). |
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