---
product_id: 222672878
title: "SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System"
brand: "simplisafe"
price: "€ 129.43"
currency: EUR
in_stock: true
reviews_count: 10
category: "Simpli Safe"
url: https://www.desertcart.es/products/222672878-simplisafe-105db-auxiliary-siren-compatible-with-gen-3-home-security
store_origin: ES
region: Spain
---

# app-controlled seamless setup 105dB piercing alarm weather-resistant for outdoor use SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System

**Brand:** simplisafe
**Price:** € 129.43
**Availability:** ✅ In Stock

## Summary

> 🚨 Don’t just secure your home—make sure everyone hears it!

## Quick Answers

- **What is this?** SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System by simplisafe
- **How much does it cost?** € 129.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/222672878-simplisafe-105db-auxiliary-siren-compatible-with-gen-3-home-security)

## Best For

- simplisafe enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Power Backup:** Includes 4 AA alkaline batteries for long-lasting, uninterrupted protection
- • **Effortless Integration:** Connects instantly with SimpliSafe Gen 3 via intuitive app control
- • **Wake Everyone Instantly:** 105dB siren that commands attention and deters intruders immediately
- • **Built for Any Environment:** Weather-resistant design ensures reliable performance indoors or sheltered outdoors
- • **Secure & Flexible Mounting:** Peel-and-stick or screw-in hardware for a sturdy, discreet installation

## Overview

The SimpliSafe 105dB Auxiliary Siren is a powerful, weather-resistant alarm designed to amplify your Gen 3 home security system. Delivering a sharp 105-decibel alert, it ensures immediate neighborhood and household awareness. Easy to install with app integration and flexible mounting options, this siren combines robust performance with user-friendly setup, backed by long-lasting alkaline batteries for dependable security day and night.

## Description

desertcart.com : SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System : Electronics

Review: A Siren That Actually Wakes Everyone Up - Why We Needed It After I accidentally set off our SimpliSafe alarm, the base station barely made a sound and my wife and kids did not even wake up. That was a wake-up call for me, literally. I knew we needed something louder that would actually get everyone’s attention in case of a real emergency. Setup and Installation Setting this up was really easy. I just opened the SimpliSafe app, added the siren, and it connected almost instantly. The app makes it straightforward to assign it to the system and it even lets you test it right away. Mounting it on the wall was a little tricky if you tried to rely on the adhesive. It did not feel secure enough, so I went with the screws included in the package. Once it was screwed in, it felt solid and I did not have to worry about it falling off. Performance This thing is seriously loud. When we tested it, it was impossible to ignore and I can say with confidence it would wake up anyone in the house. The tone is sharp and high enough to be heard through most doors and rooms. It adds an extra layer of peace of mind compared to relying on the base station alone. Pros Easy to connect and manage through the SimpliSafe app Loud enough to wake up everyone in the house Small and unobtrusive once installed Works exactly as expected Cons Adhesive was not great for wall mounting Might be a bit more expensive than some non-official options, but the reliability is worth it Bottom Line If your SimpliSafe alarm is not loud enough on its own, this is a must-have. It is easy to set up, performs exactly as advertised, and will actually alert everyone in the house. I feel much better knowing that if the alarm goes off at night, it will not go unnoticed.
Review: Will wake you up - This siren is loud, easy to set up and connects with the system. Small and blends in well. Functions as described.

## Features

- Auxiliary siren - Scare off trouble and alert the neighborhood and emergency responders with this loud,105db indoor/outdoor siren.
- Loud 105dB siren - Stop intruders in their tracks.
- Weather-resistant design - In addition to indoor use, this extra siren is weatherized for installation in sheltered areas outdoors.
- Simple set up - Peel and stick installation or can install using included hardware. Then follow the steps in the SimpliSafe App.
- Long-lasting battery
- Compatible with the SimpliSafe Gen 3 home security system

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08B3JFRHH |
| Batteries | 4 AA batteries required. (included) |
| Battery Description | Alkaline |
| Best Sellers Rank | #78 in Home Security Systems |
| Control Method | App |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,654) |
| Date First Available | June 11, 2020 |
| Item Weight | 9.9 ounces |
| Item model number | AUS301 |
| Manufacturer | SimpliSafe |
| Maximum Range | 1000 Feet |
| Mounting Type | Wall Mount |
| Noise Level | 105 Decibels |
| Number of Batteries | 4 AA batteries required. (included) |
| Product Dimensions | 3.1 x 1.13 x 5 inches |
| UPC | 815017029681 |

## Product Details

- **Brand:** SimpliSafe
- **Color:** White
- **Compatible Devices:** Desktop, Laptop, Smartphone, Tablet
- **Power Source:** Battery Powered
- **Product Dimensions:** 3.1"L x 1.13"W x 5"H

## Images

![SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System - Image 1](https://m.media-amazon.com/images/I/31rxI6AoLuL.jpg)
![SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System - Image 2](https://m.media-amazon.com/images/I/41UcLHz6XVL.jpg)
![SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System - Image 3](https://m.media-amazon.com/images/I/41gZT6v1Y6L.jpg)

## Questions & Answers

**Q: Will the panic button sound the  siren if you are not hooked up to a service plan?**
A: Yes it will.  You do not need a service plan.

**Q: will this siren work with the original simplisafe system?**
A: This siren will not work with the original system.  I just got off the phone with tech support and returning it now

**Q: Compatible with your SimpliSafe home security system. (New generation) does this mean it is not back compatible with older systems?**
A: That's right. The All New SimpliSafe uses a different method of wireless communication, so that we could add some important new features. Unfortunately, this means that components from the All New SimpliSafe are not compatible with the SimpliSafe Original.

**Q: is the sound adjustable?**
A: Yes, you can set the volume at which the siren will sound in the event of an alarm to Low, Medium, or High.

## Customer Reviews

### ⭐⭐⭐⭐⭐ A Siren That Actually Wakes Everyone Up
*by J***O on September 14, 2025*

Why We Needed It After I accidentally set off our SimpliSafe alarm, the base station barely made a sound and my wife and kids did not even wake up. That was a wake-up call for me, literally. I knew we needed something louder that would actually get everyone’s attention in case of a real emergency. Setup and Installation Setting this up was really easy. I just opened the SimpliSafe app, added the siren, and it connected almost instantly. The app makes it straightforward to assign it to the system and it even lets you test it right away. Mounting it on the wall was a little tricky if you tried to rely on the adhesive. It did not feel secure enough, so I went with the screws included in the package. Once it was screwed in, it felt solid and I did not have to worry about it falling off. Performance This thing is seriously loud. When we tested it, it was impossible to ignore and I can say with confidence it would wake up anyone in the house. The tone is sharp and high enough to be heard through most doors and rooms. It adds an extra layer of peace of mind compared to relying on the base station alone. Pros Easy to connect and manage through the SimpliSafe app Loud enough to wake up everyone in the house Small and unobtrusive once installed Works exactly as expected Cons Adhesive was not great for wall mounting Might be a bit more expensive than some non-official options, but the reliability is worth it Bottom Line If your SimpliSafe alarm is not loud enough on its own, this is a must-have. It is easy to set up, performs exactly as advertised, and will actually alert everyone in the house. I feel much better knowing that if the alarm goes off at night, it will not go unnoticed.

### ⭐⭐⭐⭐⭐ Will wake you up
*by S***W on December 25, 2025*

This siren is loud, easy to set up and connects with the system. Small and blends in well. Functions as described.

### ⭐⭐⭐⭐⭐ Perfect for hiding base location
*by C***U on January 17, 2025*

One of my main concerns with Simplisafe was the potential for smash and crash. You can look it up on the internet, it is a big concern with alarm systems. The thief finds the base station during the entry delay or shortly after the alarm goes off and smashed it before notification can be sent out. Even though alarm sirens are loud, usually it is only inside the house and is unlikely to draw attention with the doors and windows closed. I added two of these sirens and hid the base station. One siren is outdoors and the other is indoors. When the alarm goes off, the base station and both of the sirens will be sounding loudly. It would be hard to pinpoint the location of the basestation with multiple sirens sounding earpiercing noise. The external siren will attract attention to the house and no thief would want to stick around. I paired the sirens, cleaned the mounting surface with alcohol, and the siren mounted securely.

## Frequently Bought Together

- SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-31*