SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System
Quick take
The SimpliSafe 105dB Auxiliary Siren is a battery-powered extra alarm siren for Gen 3 SimpliSafe home security systems, built to be heard and to add deterrence beyond the base station. It’s designed for simple pairing through the SimpliSafe app and can be mounted indoors or in sheltered outdoor areas. The main buying caveat is fit: it only works with Gen 3, and how firmly you mount it can affect confidence in day-to-day stability.
Pros and cons
Pros
- 105dB auxiliary siren for louder neighborhood and household alerting than a base-only approach.
- Weather-resistant design supports indoor use and sheltered outdoor placement.
- App setup and management with pairing and quick testing in the SimpliSafe app.
- Flexible installation options, peel-and-stick or wall mounting with included hardware.
- Battery powered and uses four AA batteries (included).
Cons
- Compatibility limitation: only intended for SimpliSafe Gen 3 systems.
- Mounting depends on method: adhesive-only placement may feel less secure to some buyers.
- Loudness is not uniform across users, since a minority reported it was not as loud as they expected.
What buyers think
Buyer review themes are strongly centered on alarm audibility, setup experience, and mounting confidence. Many buyers describe the siren as very loud and effective at getting attention inside the home, including in situations where the base station alone seemed insufficient. Setup is repeatedly described as straightforward, with fast pairing through the SimpliSafe app and options to test the siren. For mounting, experiences vary by method, with multiple buyers preferring to use the included screws for a more secure feel than adhesive alone. Overall, review evidence suggests the siren is a practical add-on for coverage, especially when placed strategically indoors and outdoors, but buyer perceptions of loudness can differ.
How the SimpliSafe 105dB auxiliary siren works in a home security setup
This is an auxiliary alarm siren designed to expand the audible presence of your SimpliSafe system. Instead of relying only on the base station’s sound, you can add a dedicated siren that can be installed where it will be heard more clearly, depending on layout and placement. Pairing and management are handled in the SimpliSafe app, including quick testing after setup.
Key specs that matter for buying
Sound output and alerting range
The siren is rated at 105 decibels, which is intended to improve deterrence and alerting. The product lists a maximum range of 1000 feet (useful for planning placement in a property), though real-world coverage can be influenced by walls, construction, and distance to the rest of the system.
Battery power and what to expect
It runs on four AA batteries (included) and is listed as using alkaline batteries. Because it is battery powered, placement can be flexible without running power, but you should plan for periodic battery replacement as part of ownership.
Outdoor-friendly, but weatherized for sheltered locations
The siren is described as weather-resistant and suitable for indoor use and installation in sheltered outdoor areas. If you’re aiming for a fully exposed exterior mount (for example, under no cover), consider whether your location counts as sheltered.
Setup and installation: app pairing plus wall mounting choices
Setup is built around the SimpliSafe app. In day-to-day terms, that means you can add the siren, assign it to your system, and test operation from your phone. For physical installation, the unit supports either peel-and-stick mounting or wall mounting with included hardware. If you want extra confidence that it will stay put over time, some buyers lean toward using the screws rather than relying on adhesive alone.
Who it’s best for
- Gen 3 SimpliSafe owners who want more audible deterrence than the base station provides.
- Households that want clearer alarm sound coverage across rooms, or prefer to place a siren where it will be heard more reliably.
- Buyers planning indoor plus sheltered outdoor placement (for example, a covered entry area).
- People who value fast setup via app pairing and the ability to test immediately.
Who should avoid it
- Anyone with a non-Gen 3 SimpliSafe system, since compatibility is specifically for Gen 3.
- Buyers who only want adhesive-only mounting may need to think carefully about placement durability, especially if the surface is not ideal.
- Buyers with extremely high expectations for audibility in every environment, since at least some users reported it did not sound as loud as they anticipated.
Pros and cons recap
- Best strength: Adding a high-decibel auxiliary siren to improve alarm attention, with app-based setup.
- Biggest tradeoff: You may need to be selective about placement and mounting method, and loudness perceptions can vary.
- Fit check: Confirm your system is SimpliSafe Gen 3 before buying.
Is the SimpliSafe 105dB auxiliary siren worth it?
If you already own a Gen 3 SimpliSafe system and want to strengthen deterrence and make sure alarms are heard beyond the base location, this is the kind of add-on that can make a noticeable difference. The app-driven setup and weather-resistant placement options are practical advantages. Just be sure to plan mounting thoughtfully, since real-world confidence in installation can depend on whether you choose adhesive-only or screw mounting, and remember that audibility expectations can vary from home to home.
FAQ
Is this siren compatible with SimpliSafe Gen 3 systems only?
Yes. This auxiliary siren is made to work with the SimpliSafe Gen 3 home security system.
How loud is the SimpliSafe 105dB auxiliary siren?
It’s rated at 105 decibels, which is intended to be clearly audible when the alarm is triggered.
Can I install it outdoors?
It’s described as weather-resistant and suitable for sheltered outdoor areas as well as indoor use.
Does it require wiring or is it battery powered?
It’s battery powered and uses four AA batteries (included).
What’s the easiest way to install it?
You can mount it using peel-and-stick or the included wall-mount hardware, then pair it in the SimpliSafe app and test.
Specifications
| Product Title | SimpliSafe 105dB Auxiliary Siren - Compatible with Gen 3 Home Security System |
|---|---|
| Category | Electronics > Security & Surveillance > Home Security Systems |
| Brand | SimpliSafe |
| Manufacturer | SimpliSafe |
| Model Number | AUS301 |
| Color | White |
| Item Weight | 9.9 ounces |
| Product Dimensions | 3.1"L x 1.13"W x 5"H |
| Power Source | Battery Powered |
| Compatible Devices | Desktop, Laptop, Smartphone, Tablet |
| Battery Description | Alkaline |
| Number of Batteries | 4 AA batteries required. (included) |
| Control Method | App |
| Audible Noise | 105 Decibels |
| Mounting Type | Wall Mount |
| Maximum Range | 1000 Feet |
| Item Dimensions L x W x H | 3.1"L x 1.13"W x 5"H |
| UPC | 815017029681 |
| Manufacturer Warranty Description | 1 year manufacturer |
| Mfr Part Number | AUS301 |
| Unit Count | 1.0 Count |
| Item Type Name | Auxiliary Siren |
| Built-In Media | Auxiliary siren, extra adhesives, screws |
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