The Dahua DHI‑ARA14‑W2 Wireless Intercom Siren delivers loud audible alarms, two-way voice intercom via RF and mobile app, configurable alert sounds, LED indicators, and cloud updates — ideal for integrated security in homes and businesses.
Product Description
The Dahua DHI‑ARA14‑W2 Wireless Intercom Siren is an intelligent indoor siren that combines audible and visual alarm alerts with two-way voice communication. Built for integration with Dahua’s wireless alarm systems, it supports high-decibel multi-sound alerts, a panic button, configurable LED indicators, and cloud-based firmware updates. The intercom function can be accessed directly through the DMSS or DoLynk Care mobile app, allowing real-time communication between users, monitoring centers, or family members. With a sleek design, strong RF connectivity, and long battery life, this siren provides a powerful layer of security for residential and commercial environments.

What’s Included in the Box
Main Features
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Two-Way Intercom: Communicate with on-site individuals via app or SIP through the siren itself.
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High-Decibel Audio Alerts: Multiple tones for fire, medical, intrusion, and panic scenarios.
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RF Two-Way Communication: Secure, stable operation with AES128 encryption and frequency hopping.
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Panic Button Built-In: Trigger instant emergency response.
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Smart LED Indicators: Configurable red, blue, and green lights signal alarm, arming/disarming status, or errors.
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Cloud Firmware Updates: OTA updates with automatic recovery if interrupted.
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Flexible Power Options: Operates on 12 VDC or 4 × CR123A batteries.
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Long Battery Life: Up to 3 years standby (based on typical usage).

Detailed Specifications
Functionality
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Alarm Types: Fire, intrusion, medical, panic
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Buttons: 1 × panic, 1 × power
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LED Indicators: Red, blue, green
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Sound Output: High-decibel siren with buzzer
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Two-Way Audio: Yes (via RF + SIP/app)
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Intercom Support: Yes (DMSS/DoLynk Care app and SIP-compatible systems)
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Cloud Update: Supported
Wireless Communication
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Frequency: 433.1 MHz – 434.6 MHz
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Communication Type: Two-way
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Alarm Transmission Distance: Up to 1,200 m (open space)
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Intercom Communication Range: Up to 800 m
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Encryption: AES128
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Frequency Hopping: Yes
Power & Battery
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Power Source: 12 VDC or 4 × CR123A
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Power Consumption: Max 4.5 W; Standby 0.4 mW
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Battery Life: Approx. 3 years (triggered once every 2 weeks for 120 seconds)
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Low Battery Detection: Yes
Environmental & Physical
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Operating Temp: −10 °C to +55 °C
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Storage Temp: −10 °C to +55 °C
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Humidity: 10%–90% RH
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Installation: Wall mount
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Casing Material: PC + ABS
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Color: White
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Certifications: CE
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Anti-Corrosion: Basic protection
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Product Dimensions: 133 × 133 × 35.5 mm
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Net Weight: 377 g
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Gross Weight: 507 g
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Packaging Size: 170 × 166 × 55 mm

Warranty Information
Brand Overview
Dahua Technology is a leading provider of smart security products and services, recognized globally for delivering innovative, reliable, and scalable solutions that meet the evolving needs of residential, commercial, and public sector users.
SKU
DHI‑ARA14‑W2
Practical Use Scenarios
✔ Residential Homes: Loud alarms and voice intercom ensure immediate response to intrusions or emergencies.
✔ Shops and Offices: Staff can trigger alerts and speak directly with security centers or family via the siren.
✔ Care Facilities: Voice communication and medical alerts aid in quick caregiver response.
✔ Multi-Zone Alarm Systems: Integrated into wireless alarm systems with flexible mounting and power options.
Datasheets & Resources
Excellence for the Australian and New Zealand Market
The Dahua DHI‑ARA14‑W2 Wireless Intercom Siren is fully CE certified and optimized for ANZ deployment. Supporting long-range encrypted communication and reliable power options, this device is ideal for professional and DIY installations. It is distributed through authorized channels within Australia and New Zealand to ensure compliance, proper warranty service, and full support for app-based features such as DMSS and DoLynk Care.
FAQs
1. What is the Dahua DHI‑ARA14‑W2 Wireless Intercom Siren used for? (Product Code: DHI‑ARA14‑W2)
It provides audible and visual alerts in case of intrusion, fire, or emergency, and enables two-way voice communication through the DMSS or DoLynk Care apps.
2. Can I speak through the DHI‑ARA14‑W2 siren remotely? (Product Code: DHI‑ARA14‑W2)
Yes. The siren supports remote intercom functionality via SIP or mobile app, enabling two-way audio communication with on-site individuals.
3. How is the DHI‑ARA14‑W2 powered? (Product Code: DHI‑ARA14‑W2)
It can be powered by either 12 VDC or 4 × CR123A batteries, offering flexible installation options.
4. How far can the DHI‑ARA14‑W2 communicate? (Product Code: DHI‑ARA14‑W2)
Alarm signals transmit up to 1,200 m, and voice intercom functionality operates within 800 m (open space).
5. Does the DHI‑ARA14‑W2 support cloud updates? (Product Code: DHI‑ARA14‑W2)
Yes. It supports remote cloud updates with auto recovery in case of failure.