---
product_id: 777741529
title: "Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by \"Safety Technology International, Inc.\""
brand: "sti"
price: "₱2930"
currency: PHP
in_stock: false
url: https://www.desertcart.ph/products/777741529-safety-technology-international-inc-sti-1100-stopper-ii-with-horn
store_origin: PH
region: Philippines
---

# 105dB piercing horn Tamper-evident cable connection Ultra-tough polycarbonate cover Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by "Safety Technology International, Inc."

**Brand:** sti
**Price:** ₱2930
**Availability:** ❌ Out of Stock

## Summary

> 🚨 Protect your space with the ultimate false alarm stopper!

## Quick Answers

- **What is this?** Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by "Safety Technology International, Inc." by sti
- **How much does it cost?** ₱2930 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/777741529-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

- • **Loud & Clear Alert System:** 105dB piezo horn guarantees immediate attention in critical moments.
- • **Built to Last, Backed to Trust:** 3-year warranty on polycarbonate cover and 1-year on electronics ensures long-term reliability.
- • **Stop False Alarms, Stay Secure:** Patented design prevents accidental fire alarm triggers without compromising safety.
- • **Tamper-Resistant & Transparent:** Durable clear cover deters tampering while maintaining full visibility of the alarm.
- • **Effortless Access with Smart Cable:** Cover connected by cable for easy lift and automatic horn activation on closure.

## Overview

The STI-1100 Stopper II by Safety Technology International is a UL-listed, battery-powered fire alarm protector featuring a 105dB piezo horn and a tamper-resistant polycarbonate cover. Designed for high-traffic public spaces, it prevents false alarms while ensuring legitimate alerts sound loud and clear. With a 3-year cover warranty and built-in cable connection, it combines durability, safety, and ease of use in one sleek flush-mount design.

## Description

Safety Technology International, Inc. - STI 1100 Stopper II, Horn, Flush Mount with Protective Polycarbonate Cover This unique patented device has been helping to stop false fire alarms around the world for almost 30 years without limiting the legitimate alarm. This tamper-evident durable polycarbonate cover is perfect for almost all types of schools, hospitals, senior homes, stores, hotels, public buildings and more. 95dB or 105dB self-contained alarm Cover connects to the frame by cable; when you lift the cover, this cable will hang from the frame. The horn will ring when the cover snaps back to the frame. 3 year warranty against polycarbonate damage under normal use 1 year on electronic devices. The end user should check the alarm and battery functions every 6 months and replace the battery every year or as needed. UL Listed for US and Canada Safety Standards. Batteries included Polycarbonate rated from -40 degrees F to 120 degrees F (-40 degrees C to 49 degrees C) Safety Technology International, Inc. "We Protect You"

## Features

- Protective cover helps stop the wrong fire alarm
- Ultra-tough clear polycarbonate tamper-resistant cover and piezo horn
- Lift the cover and hear the horn and access the alarm
- The cover is connected to the frame by cable
- 3 year warranty against polycarbonate damage under normal use 1 year on electronics

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | STI |
| Model Number | STI-1100 |
| Product Dimensions | 12.7 x 8.1 x 16.5 cm; 453.59 g |
| Color | red |
| Name List for Name Plates | Alarm |
| Power Source | Battery Powered |
| Voltage | 12 Volts (DC) |
| Sound Level | 105 Decibels |
| Are Batteries Included | Yes |
| Item Weight | 454 g |

## Product Details

- **Brand:** STI
- **Style:** Alarm
- **Power Source:** Battery Powered
- **Color:** red
- **Item Weight:** 454 g
- **Global Trade Identification Number:** 00662950110002
- **Number of Items:** 1
- **Manufacturer:** Safety Technology Intl
- **UPC:** 783961693411 662950110002

## Images

![Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by "Safety Technology International, Inc." - Image 1](https://m.media-amazon.com/images/I/61Ar0V9OY0L.jpg)
![Safety Technology International, Inc. STI-1100 Stopper II with Horn, Flush Mount, Protective Polycarbonate Cover by "Safety Technology International, Inc." - Image 2](https://m.media-amazon.com/images/I/71WXEPlGu4L.jpg)

## Frequently Bought Together

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- 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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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-08*