The DHI-ARA13-W2 is a wireless outdoor siren designed to provide loud, visible alerts during intrusion, fire, panic, or medical emergencies. With a 110dB output and flashing LED indicators, it acts as both an alarm and a deterrent. Built tough for harsh environments and powered by long-life batteries or 12V DC, it integrates seamlessly into Dahua RF433 security ecosystems.
Key Features
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110dB Loud Siren with LED Strobe - Draws attention quickly in emergencies with high-volume audio and bright visual alerts.
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Multi-Tone Alarm Support
Includes distinct tones for intrusion, fire, medical, panic, and other alarm types.
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Dual Power Options - Runs on 4 × CR123A batteries for up to 3.4 years, or connect to 12V DC for continuous power.
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Long-Range Wireless Connectivity - Communicates up to 1,200m (line-of-sight) with secure AES128 encryption and frequency hopping.
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Cloud Firmware Updates - Supports automatic OTA firmware updates with recovery if an update fails.
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IP65 Weatherproof Rating - Built for outdoor use — rain, dust, and extreme temperatures won’t stop it.
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Tamper & Battery Monitoring - Alerts system when battery is low or if the device is opened or removed from the wall.
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Two-Way RF433 Communication - Ensures reliable alarm signalling and status reporting with compatible Dahua alarm hubs.
Perfect For:
- Gated residential villas
- Perimeter fence lines
- Driveway or garage entrances
- Apartment complexes
- Rural or standalone properties
- Construction sites or storage yards
Install Tips
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Mount near entry/exit points to maximise deterrent effect when an alarm is triggered.
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Use 12V DC for continuous power in high-traffic or high-alert areas; batteries are better for low-maintenance installs.
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Ensure clear line of sight to alarm hub if aiming for maximum wireless range (up to 1.2km).
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Keep within range of RF433 hub such as Dahua’s ARA central panel for full functionality.
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Install above reach height (2.5m+) to prevent tampering, and make sure the strobe is visible.
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Label alarm types clearly during system setup to distinguish tones (e.g. intrusion vs fire).
Downloads
Quick-Read Specs Card
| Feature |
Details |
| Alarm Type |
Siren (110dB) + LED strobe |
| Power Options |
4 × CR123A (3.4 yrs typical) or 12V DC |
| Alarm Tones |
Intrusion, Fire, Medical, Panic & more |
| Wireless Range |
Up to 1,200m (line of sight) |
| Encryption |
AES128 with frequency hopping |
| Tamper Protection |
Yes |
| Battery Status Alert |
Yes |
| Ingress Protection |
IP65 (dust/water resistant) |
| Operating Temp |
–25°C to +60°C |
| Mounting |
Wall-mount (screws not included) |
| Dimensions |
200 × 200 × 52.5 mm |
| Weight |
610g (net) |
Extra Info
Multi-Tone Alerts for Faster Response
Unlike basic sirens that use a single tone, the ARA13-W2 supports multiple distinct alarm sounds, including fire, intrusion, medical, and panic. This helps users and first responders understand the emergency type before reaching the control panel.
Extended Battery Life with Smart Usage
When powered by four CR123A batteries, the unit can last up to 3.4 years — assuming alarms are triggered every two weeks for 2 minutes. For more frequent alerts, consider the optional 12V DC input to eliminate maintenance.
Secure, Reliable Wireless Communication
The ARA13-W2 uses two-way RF433 communication with AES128 encryption, ensuring commands and alerts are reliably sent and received. Frequency hopping further protects against interference from other devices.
IP65 Protection for Harsh Environments
With full sealing against water and dust, this siren is designed to survive rain, dirt, wind, and temperature swings. From freezing winters to hot summers, it continues to function reliably outdoors.
Cloud-Enabled Updates Keep It Current
OTA firmware updates via Dahua’s cloud platform help ensure your device stays compatible with future hubs and security features — and will auto-recover from failed update attempts.
Q&A
Q: How loud is the siren?
A: It outputs up to 110dB — loud enough to be heard throughout large homes or yards.
Q: Can I use both batteries and 12V power at the same time?
A: Yes, but battery will act as backup. The device prioritizes DC power when both are connected.
Q: What happens if the battery is low or someone tampers with the device?
A: It will trigger a tamper alert and send battery status notifications to the alarm hub.
Q: Does it work with any alarm system?
A: It is designed for Dahua RF433 systems. Check compatibility with your specific hub model.
Q: Can the alarm tones be customised?
A: Tones are preset for different alarm types (e.g. fire, intrusion). You select the tone type via the hub settings.
Q: Will this still work if the internet goes down?
A: Yes. It communicates directly with the alarm hub via RF433, independent of the internet.
Q: Can I mount it on a pole or metal surface?
A: Wall mounting is recommended. Avoid metal surfaces that could interfere with RF signals.
