Product SKU: DHI-ARA14-W2
Product Overview
The Dahua DHI-ARA14-W2 is an indoor wireless intercom siren designed for compatible Dahua alarm systems in homes, offices, retail sites, clinics and other managed premises. When it receives an alarm signal, the unit can activate sound and coloured LED warnings for events such as intrusion, fire, medical emergencies and panic alarms. Its dedicated panic button provides a local emergency trigger, while the built-in microphone and two-way audio function allow users or a connected security centre to communicate with people at the site through DMSS, DoLynk Care or a supported SIP setup. Wireless communication uses the 433.1–434.6MHz band with AES128 encryption, frequency hopping and listed distances of up to 1,200 metres for alarm transmission and 800 metres for intercom. The siren can operate from 12V DC or four CR123A batteries and includes tamper, low-battery and cloud-update support. It is intended for indoor wall mounting and requires a compatible enrolled alarm hub.
Key Capabilities
Sound and Light Alarm
The siren responds to compatible alarm-system events with audible warnings and red, blue or green LED indicators. Multiple alarm sounds help distinguish fire, medical, intrusion, panic and other configured event types.
Wireless Two-Way Intercom
Two-way audio over the RF connection allows authorised users to communicate with people at the protected site. Intercom access can be provided through DMSS, DoLynk Care or a supported SIP and security-centre arrangement.
Dedicated Panic Button
A physical panic button provides a direct local emergency trigger without requiring the user to open an app. The resulting siren, notification or monitoring-centre response depends on the event linkages configured through the compatible alarm system.
Long-Range Encrypted Wireless
The two-way 433.1–434.6MHz connection supports AES128 encryption and frequency hopping. Listed communication distances reach up to 1,200 metres for alarm transmission and 800 metres for intercom, subject to the installed environment.
Flexible Battery or DC Power
The siren can operate from four CR123A batteries or a 12V DC supply. Battery operation supports installations where permanent power is unavailable, while DC power can suit locations requiring regular intercom use or frequent alarm activation.
Tamper and Battery Monitoring
Tamper detection and low-battery monitoring help the alarm system report interference with the device or declining battery capacity. Cloud firmware updates allow supported software improvements without removing the unit from the wall.
Best For
- Homes and Apartments: Adds indoor alarm warnings, panic activation and app-based communication to a compatible wireless alarm system.
- Retail Stores and Offices: Provides distinguishable alarm sounds and a local intercom point for staff or monitoring-centre communication.
- Clinics and Care Environments: Supports medical and panic alarm sounds together with two-way voice communication through the configured system.
- Remote Indoor Areas: Uses battery power and long-range wireless communication where new cabling would be difficult.
- Professionally Monitored Sites: Allows a connected security centre to communicate through the siren using a supported platform and configuration.
Why Choose the DHI-ARA14-W2
The DHI-ARA14-W2 combines alarm signalling, local emergency activation and voice communication in one compact indoor device. A basic wireless siren only warns occupants, whereas this model also supports two-way intercom through compatible apps and monitoring-centre systems. Its selectable alarm sounds help users recognise different event types, while configurable arming and disarming prompts provide clearer day-to-day feedback. Battery or 12V DC power gives installers flexibility when selecting the mounting position, and tamper, low-battery, encryption and frequency-hopping functions support a more dependable wireless design. Available through Security Wholesalers, this model should be selected after confirming the compatible hub, regional frequency, expected wireless range, intercom workflow and power method. It is not weather-rated and should only be mounted indoors.
Buyer Decision Tips
Compatibility and Range Tip: Confirm the exact Dahua alarm hub and regional 433MHz wireless version before ordering. Walls, reinforced concrete, metal structures, interference and hub placement can reduce the listed communication distances.
Power and Location Tip: Choose battery power for flexible placement or 12V DC for frequent alarms and intercom use. The device is specified for indoor wall mounting and does not have a confirmed outdoor IP rating.
Key Features & Technical Specifications
| Product Type |
Indoor wireless intercom siren for a compatible Dahua alarm system. |
| Alarm Functions |
Sound and light alarm with fire, medical, intrusion, panic and additional alarm sounds. |
| Intercom |
Two-way audio through RF transmission with app and SIP voice-talk support. |
| Microphone |
Built-in microphone confirmed. |
| Buttons |
One panic button and one power button. |
| LED Indicators |
Red, blue and green indicators with configurable arming and disarming prompts. |
| Wireless Frequency |
433.1–434.6MHz. |
| Communication |
Two-way wireless mechanism with AES128 encryption and frequency hopping. |
| Communication Distance |
Up to 1,200m for alarm transmission and up to 800m for intercom. |
| App and Platform Support |
DMSS, DoLynk Care and supported SIP communication. |
| Monitoring Functions |
Low-battery detection, tamper detection and cloud firmware update. |
| Power Supply |
12V DC or four CR123A batteries. |
| Battery Standby |
Up to three years when triggered once every two weeks with a 120-second alarm. |
| Operating Current |
Battery: 1.5A maximum and 20µA standby; 12V DC: 0.4A maximum and 1.5mA standby. |
| Power Consumption |
4.5W maximum and 0.4mW standby. |
| Installation Environment |
Indoor wall mounting. |
| Operating Conditions |
-10°C to +55°C at 10%–90% relative humidity. |
| Construction |
White PC and ABS housing with basic anti-corrosion protection. |
| Dimensions and Weight |
133 × 133 × 35.5mm; net weight 377g. |
| Certification |
CE. |
Ideal Use Cases
Home Hallways
Position the siren where occupants can hear warnings and reach the panic button quickly.
Retail Staff Areas
Provide alarm notifications, panic activation and remote voice communication near staff workspaces.
Office Reception Areas
Use the intercom function for authorised app or monitoring-centre communication with staff.
Clinics and Care Rooms
Use medical and panic alarm sounds where fast local warning and communication are important.
Remote Indoor Buildings
Use battery power where cabling is difficult, subject to successful wireless-range testing.
Choosing the Right Model
- Choose this model if: The system needs indoor sound and light alarms, a panic button and two-way app or monitoring-centre communication.
- Choose a basic wireless siren if: Audible and visual warning is required but intercom communication is unnecessary.
- Choose an outdoor-rated siren if: The device must be exposed to rain, dust or outdoor temperature extremes.
- Use 12V DC if: Frequent intercom use or regular alarm activation would place greater demand on batteries.
- Confirm the alarm hub first if: The existing system’s frequency, firmware or intercom functions have not been verified.
FAQs
- What is the DHI-ARA14-W2 used for?
The DHI-ARA14-W2 is an indoor wireless intercom siren for a compatible Dahua alarm system. It receives alarm signals and responds with sound and coloured LED warnings, while also providing intercom communication through DMSS, DoLynk Care or a supported SIP setup. It is intended as an alarm-system component rather than a standalone siren, so a compatible hub and correctly configured wireless system are required.
- Does the DHI-ARA14-W2 support two-way audio?
Yes. The DHI-ARA14-W2 supports two-way audio over its wireless RF connection and includes a microphone. Users can communicate with people at the protected site through DMSS or DoLynk Care, and a connected security centre can also use the intercom function through a supported system. Audio performance depends on wireless signal quality, hub configuration, app connectivity and the surrounding noise level.
- How far can the wireless siren communicate?
The listed communication distance is up to 1,200 metres for alarm transmission and up to 800 metres for intercom communication. These figures are useful for system planning but should not be treated as guaranteed installed distances. Walls, reinforced concrete, metal structures, electrical interference, device placement and the location of the compatible alarm hub can reduce practical wireless range, so signal testing should be completed at the intended mounting point.
- What sound and light warnings does the siren provide?
The siren supports sound and light alarms with red, blue and green LED indicators. Available alarm sounds include fire, medical, intrusion and panic warnings, with additional alarm types supported. Arming and disarming prompt sounds and LED behaviour can also be configured. The datasheet describes the alarm as high-decibel but does not provide a numerical sound-pressure rating, so an exact dB output should not be assumed.
- What does the panic button do?
The DHI-ARA14-W2 includes one dedicated panic button in addition to its power button. In a correctly configured compatible alarm system, the panic button provides a local way to initiate the programmed emergency response without opening the mobile app. The resulting siren, notification or security-centre action depends on the alarm hub, arming state, account permissions and event-linkage settings established during commissioning.
- How is the DHI-ARA14-W2 powered and how long do the batteries last?
The siren can operate from 12V DC or four CR123A batteries. Dahua lists a standby time of up to three years when the device is triggered once every two weeks and the alarm sounds for 120 seconds. Actual battery life varies with alarm frequency, intercom use, wireless signal conditions, temperature and battery quality. The power source and whether batteries or a DC supply are included should be confirmed before installation.
- Does the siren provide tamper and low-battery monitoring?
Yes. The DHI-ARA14-W2 supports tamper detection and low-battery detection, together with AES128 wireless encryption and frequency hopping. These features help the compatible alarm system report interference with the device and declining battery capacity. The siren also supports cloud firmware updates. Effective protection still depends on correct hub enrolment, event configuration, account security and reliable communication between the siren and the alarm hub.
- What should I confirm before ordering the DHI-ARA14-W2?
Confirm the compatible Dahua alarm hub, supported regional wireless frequency, required alarm and intercom distances, DMSS or DoLynk Care setup, SIP requirements, power method and indoor mounting location. The unit operates on 433.1–434.6MHz, is designed for wall mounting indoors and is not given an outdoor IP rating. Security Wholesalers can review the planned alarm components to identify likely compatibility, range, power or app-configuration limitations before installation.
Additional Information
Dahua ARA14-W2 Datasheet
