9 Best Alarm Sirens for Home Security (October 2026)
The best home security alarm sirens include the SimpliSafe 105dB Auxiliary Siren for SimpliSafe homes, the eufy Indoor Siren E20 for eufy HomeBase users, and the YoLink Smart Security Siren for flexible indoor alerts.
On this page (6 sections)
The best alarm siren for most DIY homes is the SimpliSafe 105 dB Auxiliary Siren if your system is Gen 3. For eufy HomeBase owners, the E20 adds an indoor siren with backup power, while the YoLink Outdoor Alarm Kit is a separate outdoor option with its hub included.
A siren is useful only if it can receive an alarm signal from your system. Confirm compatibility first, then decide whether you need sound indoors, outdoors, or in both places.
For a full system overview, start with our DIY alarm systems guide. If you already use SimpliSafe, our guide to adding a SimpliSafe siren covers its auxiliary siren and expansion options.
Our picks at a glance
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Best for protected outdoor alertsCheck it - 5
Best for abode systemsCheck it - 6
Check itabode Outdoor Siren with Strobe
Best for visible outdoor alerts - 7
Best for Z-Wave homesCheck it - 8
Best for wired installationsCheck it - 9
Check itNippon America Outdoor Alarm Siren
Best for large wired properties
How we chose alarm sirens for home security
These picks cover system compatibility, placement, power and alert features that matter for a DIY home alarm. A high sound rating is of little use if the siren can't pair with your hub or needs power where you can't provide it.
The selection includes add-on sirens for established alarm platforms, a YoLink kit with hub, and wired options for specific installations. We compared their stated limits, including indoor-only use, sheltered outdoor placement, backup power and moisture exposure.
The best alarm sirens for home security
The right siren depends first on your alarm platform and where the sound needs to reach. The picks are ordered by how well their features fit common DIY siren needs.
| Product | Best for | Sound | Placement | System | Our score |
|---|---|---|---|---|---|
| SimpliSafe 105dB Auxiliary Siren | SimpliSafe homes | 105 dB | Indoor or sheltered outdoor areas | SimpliSafe Gen 3 | 8.3 |
| eufy Indoor Siren E20 | eufy HomeBase users | 110 dB | Indoor only | Compatible eufy HomeBase | 8.0 |
| YoLink Smart Security Siren | flexible indoor alerts | 110 dB | Indoor use | YoLink hub for full functionality | 7.8 |
| YoLink Outdoor Alarm Kit | protected outdoor alerts | 110 dB | Outdoor rated, protected location required | YoLink hub included | 7.6 |
| abode Indoor Siren | abode systems | 95 dB | Indoor, outlet powered | abode gateway | 7.4 |
| abode Outdoor Siren with Strobe | visible outdoor alerts | 107 dB | Outdoor | abode gateway | 7.3 |
| Aeotec Siren 6 | Z-Wave homes | 80 to 110 dB adjustable tones | Indoor, wall mounted | Compatible Z-Wave gateway | 7.0 |
| Honeywell 747 Indoor Siren | wired installations | 105 dB | Indoor, wall mounted | 6.9 | |
| Nippon America Outdoor Alarm Siren | large wired properties | 120 dB | Outdoor, wall mounted | 6.8 |
SimpliSafe 105dB Auxiliary Siren: Best for SimpliSafe homes
- 105 dB siren
- Indoor or sheltered outdoor use
- Peel-and-stick or hardware mounting
- Gen 3 system required
A compatible SimpliSafe Gen 3 system can use this auxiliary siren indoors or in a sheltered outdoor spot. Battery power and two mounting options give you flexibility when choosing a location.
Pros
- Works indoors or in sheltered outdoor areas
- Peel-and-stick or hardware mounting
- Batteries included
Cons
- Requires a SimpliSafe Gen 3 system
- Outdoor placement needs shelter
The SimpliSafe Auxiliary Siren is the clearest match for a home already using a Gen 3 SimpliSafe system. It adds a 105 dB alarm and can be placed indoors or in a sheltered outdoor area.
Install it with the included adhesive or mounting hardware, then follow the setup steps in the SimpliSafe app. Four AA batteries are included, so you don't need an outlet at the mounting spot.
For outdoor use, treat “sheltered” as a real limit. A protected area is a better fit than a wall where rain reaches the unit.
Choose it when you want another sounder in a compatible SimpliSafe home. If you also need a control point, see our guide to SimpliSafe keypads and key fobs.
eufy Indoor Siren E20: Best for eufy HomeBase users
- 110 dB alarm
- Requires compatible HomeBase
- Indoor use only
- Up to 48 hours of backup power
This indoor siren adds a loud alert to a compatible eufy HomeBase system. It has a rechargeable backup battery and can sit on a desk or mount to a wall.
Pros
- 110 dB alarm
- Up to 48 hours of backup power
- Desk or wall placement
Cons
- Requires a compatible, updated HomeBase
- Not designed for outdoor use
The eufy Indoor Siren E20 is for homes that already have a compatible eufy HomeBase. It requires a supported version of HomeBase Mini, HomeBase 2, HomeBase 3 or HomeBase Pro, so check both the model and software version before buying.
The siren can sit on a desk or attach to a wall with the included adhesive strip or screws. Its rechargeable battery provides up to 48 hours of backup during a power outage, according to eufy.
This model is for indoor use only. It suits an interior floor or hallway, but skip it for an exposed porch or an outdoor garage wall.
Choose the E20 if you want a room-based alert connected to a supported HomeBase. To understand how a system hub fits into the setup, read what the Ring Alarm base station does.
YoLink Smart Security Siren: Best for flexible indoor alerts
- 110 dB siren
- Hub required for full functionality
- Device-to-device pairing
- Additional sensors needed for automations
The YoLink siren supports several alert uses when paired with other YoLink devices. A hub is needed for full functionality, including app use and battery checks.
Pros
- 110 dB siren
- Device-to-device pairing
- Can respond to other YoLink devices
Cons
- Hub needed for full functionality
- Other devices required for sensor automations
The YoLink Smart Security Siren suits a home using other YoLink devices. It can serve as an intrusion or panic siren, and device-to-device pairing lets it respond to other compatible devices.
A YoLink hub is required for full functionality, including app use and battery checks. Add compatible sensors for automations such as sounding an alarm when a door stays open or a leak sensor detects water.
Choose it if you want one siren to support several YoLink alerts or uses. Skip it if you need a stand-alone sounder with no hub or other devices.
YoLink Outdoor Alarm Kit: Best for protected outdoor alerts
- Outdoor siren and controller with hub
- 110 dB alarm
- Wireless controller
- Install in a protected location
This kit pairs an outdoor siren with a controller and YoLink hub. It supports app activation and automations, but the outdoor-rated devices are not waterproof and need protection from moisture.
Pros
- Siren, controller and hub included
- Wireless controller
- App activation and automations
Cons
- Not waterproof
- Needs a protected location away from direct rain and standing water
The YoLink Outdoor Alarm Kit combines an outdoor siren, controller and YoLink hub for a separate alarm setup. It supports app activation and automations with other YoLink products.
The devices are outdoor rated, but they are not waterproof. Place them away from direct rain, standing water, condensation and excessive moisture, and use a protected location.
The controller supports wireless installation and can also connect to existing wiring. Work out the mounting spot and protection before installing, especially where the wall is exposed to weather.
Choose this kit when you want an outdoor alert and can protect the equipment from moisture. Skip it if your only possible mounting point is exposed to rain.
abode Indoor Siren: Best for abode systems
- 95 dB siren
- Plugs into a standard outlet
- Pairs through the abode app
- Gateway required
This indoor siren plugs into an outlet and pairs with an abode system through the app. It requires an abode gateway, such as iota or the Smart Security Kit.
Pros
- Plugs into a standard outlet
- Pairs through the abode app
- Designed to echo the gateway alarm
Cons
- Requires an abode gateway
- Lower stated sound level than the 110 dB picks
The abode Indoor Siren suits an abode alarm owner who wants another indoor sounder. It plugs into a standard outlet and pairs through the abode app.
You need an abode gateway, such as iota or the Smart Security Kit. Because the siren depends on an outlet, choose a location where the sound can reach the areas you care about without stretching power access.
Choose it if you want an abode-specific indoor siren and have a suitable outlet. Its 95 dB rating is lower than the 110 dB options, so buyers focused on the highest stated output should look elsewhere.
abode Outdoor Siren with Strobe: Best for visible outdoor alerts
- 107 dB siren
- Strobe flashes during an alarm
- Waterproof housing
- abode gateway required
The outdoor unit combines a siren with a flashing strobe to make an alarm visible as well as audible. It requires an abode gateway.
Pros
- Strobe flashes during an alarm
- 107 dB siren
- Waterproof housing
Cons
- Requires an abode gateway
- Outdoor placement and mounting need planning
The abode Outdoor Siren with Strobe combines a 107 dB alarm and flashing light for a visible outdoor alert. Its housing is waterproof, and the anti-tampering design triggers the siren if someone attempts to remove or damage it.
It requires an abode gateway, including iota or the Smart Security Kit, and uses 2 included D batteries. Plan for access to the batteries as well as a secure mounting position.
The strobe provides a visual signal while the siren sounds. Choose this if you have an abode system and want an outdoor alert people can see; skip it if you don't have the required gateway.
Aeotec Siren 6: Best for Z-Wave homes
- Volume-adjustable tones
- Visual light alert
- Up to 4 hours of backup battery
- Compatible Z-Wave gateway required
Siren 6 offers adjustable sounds and a visual alert for a compatible Z-Wave setup. Its backup battery can keep it working for up to 4 hours during a power outage.
Pros
- Volume-adjustable tones
- Visual light alert
- Backup battery
Cons
- Requires a compatible Z-Wave gateway
- Not compatible with Vera
Aeotec Siren 6 suits a home built around a compatible Z-Wave gateway. It combines adjustable tones with a visual alert and has backup power rated for up to 4 hours during an outage.
Aeotec lists compatible gateways including Samsung SmartThings, HomeSeer, Open Z-Wave and Zipabox. Siren 6 is not compatible with Vera, so confirm the exact gateway before choosing it.
This is the strongest fit for someone who wants to set different alert sounds or use the light alert. Skip it if your system doesn't support the required Z-Wave connection.
Honeywell 747 Indoor Siren: Best for wired installations
- Two tones: steady and warble
- 15 W power rating
- Wall mounting hardware included
- Corded electric
This corded indoor siren offers steady and warble tones in a wall-mounted unit. Its simple role suits a wired alarm setup that can supply power at the chosen location.
Pros
- Two sound tones
- Wall mounting hardware included
- 15 W power rating
Cons
- Corded electric power
- No smart system compatibility is specified
The Honeywell 747 is a corded indoor siren with steady and warble tones. It has a 15 W power rating and includes hardware for wall mounting.
Its described features don't identify a smart-home pairing platform. Before choosing a mounting point, confirm that your wired alarm setup can supply the required connections and power there.
Choose this for a fixed wired installation where two tone options are useful. Skip it if you need an app-connected accessory that pairs with a named alarm platform.
Nippon America Outdoor Alarm Siren: Best for large wired properties
- 120 dB wired horn
- 110 V AC power
- Included Wi-Fi socket for remote activation
- Water-resistant housing
This wired outdoor horn is rated at 120 dB and includes a Wi-Fi socket for remote activation. It uses 110 V AC power, so plan the cable route and outlet before mounting.
Pros
- 120 dB stated sound level
- Wi-Fi socket for remote activation
- Water-resistant housing
Cons
- Requires an AC outlet and cable route
- Remote control does not make it a sensor-based alarm system
The Nippon America Outdoor Alarm Siren is a high-output wired horn for buyers who need a separate outdoor alert. It includes a Wi-Fi socket for remote activation from a smartphone.
The 8 ft power cable affects where it can go: you'll need a suitable outlet and a route that reaches the mounting point. The horn can rotate 90 degrees, and its housing is described as water resistant.
Remote activation is not automatic alarm-system integration. Choose it when a powered horn with remote control suits your property; skip it if you expect your existing alarm sensors to trigger it automatically.
How do you choose an alarm siren for your home?
Start with compatibility, location and power, then compare alert features. Those practical details determine whether the siren receives the alarm signal and can be installed where the sound is needed.
Will the alarm siren work with your system?
An alarm siren may need a specific hub, gateway or system generation. SimpliSafe's auxiliary siren works with Gen 3, eufy's E20 needs a supported HomeBase, and abode's add-ons require an abode gateway.
YoLink and Z-Wave options also depend on compatible equipment. If you're still choosing the system that will control your sensors and siren, begin with our DIY alarm system guide.
Where should you install an indoor or outdoor siren?
Choose a location based on the siren's intended use and exposure limits. The eufy E20 is for indoor use, while SimpliSafe permits sheltered outdoor placement.
The YoLink Outdoor Alarm Kit needs protection from direct rain, standing water, condensation and excess moisture. The abode outdoor unit has waterproof housing, but you should still pick a secure location that leaves access to its batteries.
Inside, position the siren where sound can reach occupied areas. Avoid hiding it in a closed cupboard or placing it where furniture or a closed door blocks the sound path.
How much does the stated sound level tell you?
A decibel rating helps compare stated output, but it doesn't tell you exactly how well sound will carry through your home. Walls, closed doors, distance and room layout all affect what you hear.
Think about where household members sleep and spend time, and whether neighbors or people outside need an audible alert. A strobe, such as the one on the abode outdoor siren, adds a visual signal but doesn't replace checking where its sound can be heard.
Should you choose battery power or a wired siren?
Battery power allows more freedom in placement, while corded models need a practical outlet or power connection nearby. A wired unit can suit a fixed location, but you should map the cable route before drilling or mounting.
If outage operation matters, check both the siren and the hub or gateway it depends on. The eufy E20 specifies up to 48 hours of backup, and Aeotec specifies up to 4 hours for its siren.
How do you set up and care for a home alarm siren?
Set up the siren in the matching app or gateway, then confirm its intended location and power arrangement. Follow the instructions for the exact model because pairing and mounting differ across alarm platforms.
Before permanent mounting, check that the chosen spot has a usable connection to its hub or controller. For adhesive mounting, use a clean, suitable surface; use screws and hardware where a firmer mount is needed or the instructions call for it.
Test the alarm path using the system's normal setup procedure after pairing. Confirm that the right sensor or control triggers the siren and that you can silence or reset it as intended; avoid relying on a manual remote trigger as proof that sensor automations work.
Check batteries or backup power at the intervals recommended for the device. Keep the siren unobstructed, and inspect outdoor installations for signs of moisture or damage, especially where the unit requires a protected location.
For a new system, plan sensor placement and siren placement together. Our home alarm installation guide covers the wider setup process.
What mistakes should you avoid when buying an alarm siren?
The most common mistake is buying by decibel number before checking system compatibility. A loud siren that can't connect to your hub won't provide the alarm response you expect.
Don't assume every outdoor-rated device is waterproof. The YoLink Outdoor Alarm Kit needs protection from moisture, and the SimpliSafe auxiliary siren is intended for sheltered outdoor placement.
Avoid mounting before confirming access to power, batteries and the hub connection. Also don't assume remote app control means automatic sensor activation: the Nippon America horn is described with remote activation, but not automatic pairing to an existing alarm system.
Finally, don't place a siren where doors, cabinets or distance muffle its sound. Choose a spot with a clear path into the rooms where the alert needs to be heard.
Which alarm siren should you choose?
Choose the SimpliSafe auxiliary siren for a compatible Gen 3 home, the eufy E20 for a supported HomeBase, or an abode siren if you use an abode gateway. Pick the YoLink Outdoor Alarm Kit for an outdoor alert only when you can protect its equipment from moisture.
For Z-Wave homes, Aeotec Siren 6 adds adjustable tones and a light alert. If you need a fixed wired sounder, the Honeywell 747 suits an indoor installation.
The Nippon America horn is for a powered outdoor location with remote activation. Match the siren to your system first, then check placement and power; our alarm keypad and key fob guide can help you plan the system's control points.
Our top 3 picks at a glance
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Frequently asked questions
Can you add a siren to a DIY home alarm system?
Yes, if the siren works with your alarm hub or gateway. Check the exact system generation and model before choosing one, since a siren made for SimpliSafe, eufy, abode or Z-Wave may not pair with another platform.
For a broader overview, see our DIY alarm system guide.
Is an indoor alarm siren loud enough for a home?
An indoor siren can alert people inside the home, but its sound level alone doesn't show how it will carry through closed doors or from outside. Consider the stated dB level, placement and room layout, then choose a location that keeps the sound clear.
Can you install an alarm siren outdoors?
Only choose a siren intended for outdoor use, and follow its placement limits. SimpliSafe allows sheltered outdoor installation, while the YoLink Outdoor Alarm Kit needs protection from rain and moisture.
The eufy E20 is for indoor use only.
Do wireless sirens work during a power outage?
Some have backup power, but the duration and power setup vary. The eufy E20 specifies up to 48 hours of backup, while Aeotec Siren 6 specifies up to 4 hours.
Check whether the siren and its hub or gateway also remain powered.
Should you choose the loudest alarm siren?
Not by sound level alone. A siren must pair with your system, suit its location and have a practical power source.
A 120 dB wired horn may suit an outdoor location with a nearby outlet, while a smaller indoor unit may fit a connected alarm system better.
