Dahua DHI-ARA12-W2 - Wireless Indoor Siren
Product Features
- Wireless indoor siren for Dahua wireless alarm systems
- Sound pressure up to 105 dB(A) at 1 metre
- Two-way communication with frequency hopping and AES128 encryption
- Up to 800 m communication range in open space
- Powered by 2 x CR123A batteries, approx. 2.5 years battery life
- Tamper alarm and low battery alarm
Dahua DHI-ARA12-W2 — Wireless Indoor Siren
The Dahua DHI-ARA12-W2 is a wireless indoor siren designed to give a clear, loud audible warning when a Dahua wireless alarm system is triggered. It produces a sound pressure of up to 105 dB(A) at 1 metre across 3 selectable volume levels, and communicates with the alarm hub using two-way, frequency-hopping radio with AES128 encryption for a stable, secure link.
Who is it for?
This siren is intended as the internal audible warning device within a Dahua wireless intruder alarm installation, alerting occupants the moment a zone is triggered. It suits homes, offices, shops and other indoor spaces already running a compatible Dahua wireless alarm hub.
Key specification
| Spec | Detail |
|---|---|
| Sound Pressure | Volume high: 105 dB(A); in anechoic chamber: high 84 dB(A) at 1m, medium 78 dB(A) at 1m |
| Volume Control | 3 volume levels |
| Carrier Frequency | 433.1 MHz–434.6 MHz |
| Communication Mechanism | Two-way |
| Communication Distance | Up to 800 m (2,624.67 ft) in an open space |
| Encryption Mode | AES128 |
| Frequency Hopping | Yes |
| Tamper Alarm | Yes |
| Low Battery Alarm | Yes |
| Power Supply | 2 x CR123A batteries |
| Battery Life | 2.5 years in working status (triggered twice weekly, 120s alert each time) |
| Installation | Bracket mount |
| Product Dimensions | 81.0 mm x 81.0 mm x 26.0 mm (L x W x H) |
| Net Weight | 105 g |
| Certifications | CE |
What you will need
- A compatible Dahua wireless alarm hub/panel — this siren does not function as a standalone device and must be paired to a Dahua wireless alarm system
- 2 x CR123A batteries (not always included) to power the siren
Frequently asked questions
Does the DHI-ARA12-W2 work on its own?
No. It is a wireless accessory that must be paired with a compatible Dahua wireless alarm hub/panel to receive trigger signals.
How loud is the siren?
It reaches a sound pressure of up to 105 dB(A) at 1 metre on its high volume setting, with 3 volume levels available.
How is it powered?
It runs on 2 x CR123A batteries, with an estimated battery life of around 2.5 years under typical use.
How far can it communicate from the hub?
Up to 800 m in open space, using two-way, frequency-hopping radio with AES128 encryption for a stable connection.
Explore the full Dahua range, browse more Intruder alarms, or get in touch via Contact us on 01902 902251. You can also visit our Wolverhampton trade counter to see products in person.
| Product Code | DHI-ARA12-W2 |
|---|---|
| Manufacturer | Dahua |
| Colour | Brown |
TECHNICAL SUPPORT
We provide tailored support for you and your CCTV system.
3 YEAR WARRANTY
Many of our Cameras and Recorders come with a comprehensive 3 year warranty.
COME & VISIT US
We've got a fully functioning show room and IP suite to show you exactly how our CCTV equipment works
FREE DELIVERY OVER £ 149.99
As cheap as £10, orders placed before 2:30pm are dispatched for delivery within 1–2 working days!
