---
product_id: 59773295
title: "Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover"
brand: "sti"
price: "80869 Ft"
currency: HUF
in_stock: true
reviews_count: 5
category: "Sti"
url: https://www.desertcart.hu/products/59773295-safety-technology-international-inc-sti-1100-stopper-ii-with-horn
store_origin: HU
region: Hungary
---

# 105 dB loud alarm Flush mount, 4-fix installation UV-stabilized polycarbonate Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover

**Brand:** sti
**Price:** 80869 Ft
**Availability:** ✅ In Stock

## Summary

> 🛑 Stop false alarms before they start — protect your space with confidence!

## Quick Answers

- **What is this?** Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by sti
- **How much does it cost?** 80869 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/59773295-safety-technology-international-inc-sti-1100-stopper-ii-with-horn)

## Best For

- sti enthusiasts

## Why This Product

- Trusted sti brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Defense:** Tough UV-stabilized polycarbonate cover resists knocks and tampering
- • **Seamless Retrofit:** Simple flush mount with 4-fix points fits over existing call points effortlessly
- • **Trusted Longevity:** 3-year polycarbonate breakage guarantee keeps your investment secure
- • **Loud & Clear Alert:** 105 dB alarm cuts through noise to stop false alarms fast
- • **Global Safety Standard:** UL/cUL Listed for reliable, code-compliant fire alarm protection

## Overview

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.

## Description

Larger 95 or 105 dB alarmed cover helps prevent malicious or accidental false fire alarms. The Stopper II is a unique device which has helped prevent false fire alarms around the world for more than 30 years, without restricting legitimate operation of devices such as fire alarm break glass call points. It is ideal for schools, colleges, hospitals, nursing homes, hotels and all public buildings where there is a history or a threat of false fire alarms. The Stopper II consists of a clear, tamperproof, tough polycarbonate cover and frame that retrofits over the break glass call point or pull station

Review: 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!
Review: It matched the ad. It was simple to install! And the horn was great as we expected!

## Features

- Larger Alarmed cover helps prevent malicious or accidental false fire alarms
- Prevents false fire alarms without hindering legitimate operation of a manual call point in the event of an emergency
- Tough UV-stabalised polycarbonate housing can withstand the severest of knocks.
- UL/cUL Listed No. S2466
- A simple flush 4 fixing installation can retrofit over existing device
- 3 year guarantee against breakage of polycarbonate in normal use (one year on electromechanical and electronic components)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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) |

## Product Details

- **Brand:** STI
- **Colour:** Clear
- **Global Trade Identification Number:** 00662950110002
- **Item weight:** 454 g
- **Manufacturer:** Safety Technology Intl
- **Material:** Polycarbonate
- **Number of items:** 1
- **Power source:** Corded Electric
- **Product dimensions:** 76.2D x 20.3W x 15.2H centimetres
- **Style:** Alarms

## Images

![Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover - Image 1](https://m.media-amazon.com/images/I/61Ar0V9OY0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***Y on 24 June 2025*

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!

### ⭐⭐⭐⭐⭐ Review
*by H***. on 21 August 2024*

It matched the ad. It was simple to install! And the horn was great as we expected!

### ⭐⭐⭐⭐⭐ Review
*by K***N on 20 January 2024*

No more prank alarm after installing this

## Frequently Bought Together

- Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover , Red
- Safety Technology International, Inc. STI-1130 Stopper II with Horn, Clear Spacer and Protective Polycarbonate Cover
- 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

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**Shop now:** [https://www.desertcart.hu/products/59773295-safety-technology-international-inc-sti-1100-stopper-ii-with-horn](https://www.desertcart.hu/products/59773295-safety-technology-international-inc-sti-1100-stopper-ii-with-horn)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-03*