---
product_id: 719475148
title: "Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery"
brand: "sti"
price: "A$8"
currency: AUD
in_stock: false
url: https://www.desertcart.com.au/products/719475148-safety-technology-international-inc-sti-6402-105-db-exit-stopper
store_origin: AU
region: Australia
---

# 105 dB piercing alarm 9V battery powered, included Fits double doors, versatile mount Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery

**Brand:** sti
**Price:** A$8
**Availability:** ❌ Out of Stock

## Summary

> 🚪🔊 Secure your space with a 105 dB shout!

## Quick Answers

- **What is this?** Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery by sti
- **How much does it cost?** A$8 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/719475148-safety-technology-international-inc-sti-6402-105-db-exit-stopper)

## 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

- • **Plug & Protect:** Self-contained unit with included 9V battery for instant setup
- • **Compact & Discreet:** Slim 5-inch diameter design blends with your door aesthetics
- • **Flexible Installation:** Mounts on top, side, or next to almost any double door
- • **Touch-Control Convenience:** Easy on/off switch for seamless daily use
- • **Unmatched Audible Security:** 105 dB alarm ensures no unauthorized exit goes unnoticed

## Overview

The STI-6402 Exit Stopper is a powerful, self-contained door alarm designed for double doors, delivering a piercing 105 dB alert to prevent unauthorized exits or entries. Easy to install with flexible mounting options and powered by an included 9V battery, it combines robust security with user-friendly touch control in a compact design.

## Description

EMER,DR ALM EXIT STPR DBLE DR

## Features

- Alarm alerts to unauthorized exits or entries through protected doors
- Unit is completely self-contained and easy to install
- Sounds a powerful 95 or 105 db alarm when Activated
- May be mounted on top, right, left or next to almost any door
- Dimensions - 5 in. diameter x 1.875 in. depth

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Number of Batteries | 1 9V batteries required. (included) |
| Voltage | 9 Volts |
| Control Method | Touch |
| Noise Level | 105 Decibels |
| Mounting Type | Door Mount |
| Sensor Technology | Contact Sensor |
| UPC | 662950640202 |
| Item Weight | 363 g |
| Global Trade Identification Number | 00662950640202 |
| Manufacturer | Safety Technology International, Inc |
| Model | STI-6402 |
| Product Dimensions | 13.65 x 13.65 x 5.08 cm; 362.87 g |
| Batteries | 1 9V batteries required. (included) |
| Item model number | STI-6402 |
| Batteries Included | Yes |
| Batteries Required | Yes |

## Product Details

- **Colour:** 2
- **Brand:** STI
- **Power Source:** Battery Powered
- **Product Dimensions:** 13.7L x 13.7W x 5.1H Centimeters
- **Battery Description:** Alkaline

## Images

![Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery - Image 1](https://m.media-amazon.com/images/I/61QQqshHzRL.jpg)
![Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery - Image 2](https://m.media-amazon.com/images/I/81Tfn4C0fYL.jpg)
![Safety Technology International, Inc. STI-6402 105 dB Exit Stopper Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery - Image 3](https://m.media-amazon.com/images/I/81veCvJeXgL.jpg)

## Questions & Answers

**Q: Dose it come with the key?**
A: Our STI-6400 comes with 2 KIT-H19032 alarm keys (2341) and 2 KIT-H19016 service screw key

**Q: where is this made?**
A: Taiwan

**Q: How do you shut off the short loud signal every minute or two  that is obnoxious and assume is meant to indicate battery working?**
A: That could indicate you have a low battery.  Shut-off the unit and then replace the internal 9V battery.  Then you can turn the unit back on and the indicator should go away.  If you need instructions on how to do this let visit our website and you can access the installation sheet.  Or email us at sales@sti-usa.com.

**Q: If the door is opened in an emergency do the wires break away and if so can they be placed back?**
A: The STI-6402 goes into alarm after given it's NC simulation.  With the STI-6402 there will be (1) reed on board wired into the RS1 for the second door you will attach the additional reed in the hardware pack into the RS2.  Each door will need to have the extra magnet along side each reed (wired magnet) and when they separate it goes into alarm.   There is no disconnection of wires - visit this link to view it's install https://www.sti-usa.com/wp-content/uploads/6400Install.pdf.  For more information you can reach out to STI tech support, support@sti-usa.com.

## Frequently Bought Together

- Safety Technology International, Inc. STI-6402 105 dB Exit Stopper® Multifunction Door Alarm for Double Doors with on/off Switch and 9 Volt Battery
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- Safety Technology International, Inc. STI-6400 Exit Stopper Multifunction Door Alarm, Helps Prevent Unauthorized Exits or Entries Through Emergency Doors

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-02-15*