--- product_id: 222672878 title: "105dB Auxiliary Siren - Compatible with Gen 3 Home Security System" brand: "simplisafe" price: "€ 126.47" currency: EUR in_stock: true reviews_count: 10 category: "Simpli Safe" url: https://www.desertcart.be/products/222672878-105db-auxiliary-siren-compatible-with-gen-3-home-security-system store_origin: BE region: Belgium --- # app-controlled seamless setup 105dB piercing siren weather-resistant for sheltered outdoor use 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System **Brand:** simplisafe **Price:** € 126.47 **Availability:** ✅ In Stock ## Summary > 🔔 Don’t just secure your home—make sure everyone hears it! ## Quick Answers - **What is this?** 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System by simplisafe - **How much does it cost?** € 126.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/222672878-105db-auxiliary-siren-compatible-with-gen-3-home-security-system) ## 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 - • **Built for Any Weather:** Durable, weather-resistant design lets you mount it indoors or in sheltered outdoor spots without worry. - • **Reliable Battery Power:** Runs on included long-lasting alkaline batteries, ensuring your security stays active even during power outages. - • **Wake Everyone Instantly:** 105dB siren cuts through noise and white noise machines to alert your entire household and neighbors. - • **Effortless Setup & Control:** Connects instantly via the SimpliSafe app with peel-and-stick or screw mounting options for flexible installation. - • **Expand Your Security Network:** Compatible with SimpliSafe Gen 3 systems and supports up to 1000 feet range for multi-siren setups in larger homes. ## Overview The SimpliSafe 105dB Auxiliary Siren is a powerful, weather-resistant security add-on designed for SimpliSafe Gen 3 systems. Delivering a loud 105-decibel alert, it ensures immediate attention from household members and neighbors alike. Easy to install with app integration and multiple mounting options, it runs on included alkaline batteries for reliable, uninterrupted protection indoors or in sheltered outdoor areas. ## 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: Definitely needed - If you have a larger home I’d buy 2. We have in our garage and one in the main park of the house. The simplisafe base is not very loud. Especially if you use a fan or white noise machine in your room while sleeping. The two we have will definitely wake you up and the outside one will alert neighbors or scare away potential intruders. ## 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 | | Audible Noise | 105 db | | Battery Description | Alkaline | | Best Sellers Rank | #82 in Home Security Systems | | Brand | SimpliSafe | | Built-In Media | Auxiliary siren, extra adhesives, screws | | Color | White | | Compatible Devices | Desktop, Laptop, Smartphone, Tablet | | Control Method | App | | Customer Reviews | 4.7 out of 5 stars 1,699 Reviews | | Item Dimensions L x W x H | 3.1"L x 1.13"W x 5"H | | Item Type Name | Auxiliary Siren | | Item Weight | 9.92 ounces | | Manufacturer | SimpliSafe | | Manufacturer Warranty Description | 1 year manufacturer | | Maximum Range | 1000 feet | | Mfr Part Number | AUS301 | | Model Number | AUS301 | | Mounting Type | Wall Mount | | Number of Batteries | 4 AA batteries required. (included) | | Power Source | Battery Powered | | Product Dimensions | 3.1"L x 1.13"W x 5"H | | UPC | 815017029681 | | Unit Count | 1 Count | ## 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 ![105dB Auxiliary Siren - Compatible with Gen 3 Home Security System - Image 1](https://m.media-amazon.com/images/I/31rxI6AoLuL.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. ### ⭐⭐⭐⭐⭐ Definitely needed *by C***R on July 7, 2026* If you have a larger home I’d buy 2. We have in our garage and one in the main park of the house. The simplisafe base is not very loud. Especially if you use a fan or white noise machine in your room while sleeping. The two we have will definitely wake you up and the outside one will alert neighbors or scare away potential intruders. ### ⭐⭐⭐⭐⭐ Siren l *by E***Y on June 19, 2026* Very easy setup. ## Frequently Bought Together - SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System - SimpliSafe Glassbreak Sensor - 20ft. Range - Sound Detection Technology - Compatible with The SimpliSafe Home Security System - Latest Gen - SimpliSafe Entry Sensor (Pack of 4) - Window and Door Protection - Compatible with The SimpliSafe Home Security System - Latest Gen --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/222672878-105db-auxiliary-siren-compatible-with-gen-3-home-security-system](https://www.desertcart.be/products/222672878-105db-auxiliary-siren-compatible-with-gen-3-home-security-system) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-10*