# DHI-ARA12-W2 WIRELESS INDOOR ALARM  SIREN

> The Dahua DHI-ARA13-W2 (868 MHz) Wireless Indoor Siren provides loud, reliable alerts for alarm events, including intrusion, fire, and other danger warnings. Featuring two-way wireless communication, frequency hopping, and AES128 encryption, it ensures stable, secure operation. With cloud updates, tamper detection, and low battery alarm, this siren is ideal for villas, apartments, shops, and…

- Price: KSh 4,500 (excluding 16% VAT)
- Availability: In stock
- Brand: Dahua
- Seller: Secom World, Nairobi (+254724037449)
- Updated: 2026-11-02
- URL: https://secomworld.co.ke/product/dh-ara12-w2/

## Specifications
| Feature | Detail |
|---|---|
| Loud siren | 84 dB(A) high / 78 dB(A) medium at 1 m |
| Indoor temperature measurement | –15 °C to +65 °C (±1 °C) |
| Carrier Frequency | 868.0–868.6 MHz |
| Transmitter Power (EIRP) | 25 mW |
| Communication Distance | Up to 1,000 m (open space) |
| Power Supply | 2 × CR123A batteries |
| Power Consumption | Max 240 mW |
| Operating Temp | –10 °C to +55 °C |
| Operating Humidity | 10–90 % RH |
| Dimensions | 81 × 81 × 26 mm |
| Weight | 105 g (net), 175 g (gross) |
| Installation | Bracket mount |
| Certifications | CE, EN 50131 series |
| Security Grade | 2 |
| Environmental Class | II |
| Battery Life | ~2.5 years (triggered twice/week, 120 s each) |

## Description
The **Dahua Wireless Indoor Siren (868 MHz)** is a compact, high-performance alarm device designed to **alert occupants immediately** when an alarm is triggered. It uses **two CR123A batteries** for power and can operate for up to **2.5 years under normal usage**. The siren emits sound at **84 dB(A) for high volume** and **78 dB(A) for medium volume** at 1 meter, providing effective deterrence.


Equipped with a **green LED indicator, power button, and tamper alarm**, it supports **cloud updates, test mode, signal strength detection**, and **temperature measurement** for indoor environments. Its **PC + ABS casing** ensures durability and a clean finish, while **bracket mounting** allows easy installation.

### About this product

The DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN is a security alarm system device from Dahua. It works as part of an alarm system, helping to detect intrusions and alert you to them.

### What to check before you buy

Before buying, check that it is compatible with the alarm panel or hub you use, and whether your system is wired or wireless. Plan which doors, windows and rooms need cover, and test the signal range in your building, because walls and distance affect wireless parts. Secom World can supply and install it for you, so ask us to look at your site if you would like advice on the setup.

### Buying from Secom World

Our shop is at Montana Mall, Ground Floor, Shop No. 11, Nairobi, open Monday to Saturday, 8:00am to 6:00pm. You can collect the same day, get delivery in Nairobi the same or next working day, or use our countrywide courier, which takes 1 to 3 working days. Call or WhatsApp 0724 037 449 for stock, advice or a quote.

## FAQs
### What is the DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN used for?
The DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN is a security alarm system device from Dahua. It works as part of an alarm system, helping to detect intrusions and alert you to them.

### What are the main specifications of the DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN?
Loud siren: 84 dB(A) high / 78 dB(A) medium at 1 m; Indoor temperature measurement: –15 °C to +65 °C (±1 °C); Carrier Frequency: 868.0–868.6 MHz; Transmitter Power (EIRP): 25 mW; Communication Distance: Up to 1,000 m (open space). See the full details on this page, or ask us to confirm anything specific.

### Will this work with my alarm system?
Check that it is compatible with your panel or hub, and whether your system is wired or wireless. Send us your panel model and we will confirm.

### Where can I buy the DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN in Kenya?
You can buy it at Secom World, Montana Mall, Ground Floor, Shop No. 11, Nairobi, or order on this page. Collection is the same day, Nairobi delivery the same or next working day, and countrywide courier takes 1 to 3 working days.

### Can Secom World install the DHI-ARA12-W2 WIRELESS INDOOR ALARM SIREN?
Yes. Secom World supplies and installs security systems for homes and businesses across Kenya. Call or WhatsApp 0724 037 449 to arrange a site visit or a quote.