AirShield Indoor Siren: audible alarm indoors
The AirShield Indoor Siren is a compact wireless indoor siren that gives a loud warning immediately when an alarm is triggered. This deters an intruder and lets everyone in the home or business know straight away that something is wrong.
The siren (Dahua ARA12-W2(868)) pairs wirelessly with your AirShield hub on 868 MHz and has three volume settings. You can see its status in the app and receive a notification in the event of tampering or an empty battery. You choose white or black yourself.
Why the AirShield Indoor Siren
Loud warning indoors
Up to 84 dB(A) at 1 metre, with three volume settings (high, medium, low) so that you can adjust the sound to the room.
Encrypted and tamper-resistant
Two-way communication on 868 MHz with AES128 and frequency hopping, plus a tamper contact that reports removal or tampering.
Years on batteries
Runs on 2 CR123A batteries with a battery life of up to approximately 2.5 years, with a notification as soon as the battery is nearly empty.
Status in the app
View the siren and the system in the free DMSS app, with clear indications for alarm, arming and disarming, and faults.
Product photos
Technical specifications
| Alarm | |
| Sound | Up to 84 dB(A) at 1 m, 3 volume settings |
| Indication | LED for alarm, arming/disarming and fault |
| Wireless | |
| Frequency | 868,0 to 868,6 MHz |
| Communication | Two-way, AES128 encrypted, with frequency hopping |
| Security | Tamper contact and low battery alert |
| Maintenance | Cloud updates with automatic recovery |
| General | |
| Power supply | 2x CR123A battery, up to approximately 2.5 years |
| Dimensions | 81 × 81 × 26 mm, 105 g |
| Environment | Indoor, -10 to +55 °C |
| Model | Dahua ARA12-W2(868) |
Which siren suits you?
An Outdoor Siren is mounted outside and deters visibly and audibly. Indoors, you can choose the compact Indoor Siren or the Intercom Siren, which adds two-way audio and a panic button. Many people combine two: a loud one outside and one inside.
| Model | Location | Sound | Light | Special feature |
|---|---|---|---|---|
| Indoor Siren | Indoor | Up to 84 dB | Status LED | Compact and affordable |
| Outdoor Siren | Outdoors (IP65) | Up to 110 dB | Flashing LED light | Strongest deterrent |
| Intercom Siren | Indoor | Up to 100 dB | Light indication | Two-way audio + panic button |
All three work wirelessly on 868 MHz with two-way communication and AES128, and pair with the AirShield hub. The Outdoor and Intercom can also be powered at 9 to 15 VDC.
Notifications and expansion
Everything in the DMSS app
When an alarm is triggered, you hear the siren and immediately receive a push notification on your phone. In the free Dahua DMSS app you can see the status and manage your system. No subscription, on iPhone and Android.
No AirShield system yet?
This siren works with the wireless AirShield hub from Dahua. Put your system together with the configurator, or have everything installed by our VEB-approved installers.
Frequently asked questions
How loud is the Indoor Siren?
Up to 84 dB(A) at 1 metre, with three volume settings so that you can adjust the sound to the room.
Does the siren work wirelessly?
Yes. It pairs wirelessly with the AirShield hub on 868 MHz and runs on 2 CR123A batteries, so no cabling needs to be installed.
What is the difference from the Intercom Siren?
The Intercom Siren adds two-way audio and a panic button and is slightly louder (up to 100 dB). This Indoor Siren is the compact, affordable indoor siren.
Can I combine indoor and outdoor?
Yes. Many people fit an Outdoor Siren outside for visible deterrence and an Indoor Siren inside.
In the box
AirShield Indoor Siren
The indoor siren itself.
Mounting bracket
Plus installation materials.
Documentation
Manual.
