Product SKU: DHI-ARA46-N-W2
Product Overview
The Dahua DHI-ARA46-N-W2(868) Wireless Alarm Repeater Pro is designed to extend and strengthen communication between a compatible ARC3800H-series alarm hub and supported wireless peripherals. It can maintain simultaneous connections to the hub through Ethernet, Wi-Fi and RF, giving larger or more complex installations several communication paths instead of relying on a single link. The repeater supports up to 128 wireless peripherals, automatic or manual device pairing, two-way communication, frequency hopping and AES128 encryption. Airfly and RF-HD modes provide different communication distances and data capabilities, including support for forwarding image and audio information from compatible devices. A built-in 4,750mAh rechargeable battery supports continued operation during a mains interruption, while cloud updating, dual-system update recovery, offline linkage, tamper detection and low-battery monitoring help maintain system reliability. This model is only compatible with Dahua ARC3800H-series hubs.
Key Capabilities
Multiple Hub Communication Paths
Ethernet, Wi-Fi and RF can remain connected to the compatible hub simultaneously. This provides more connection options for installations where depending on only one network or wireless path would be unsuitable.
Support for 128 Wireless Peripherals
The repeater supports up to 128 compatible wireless peripherals, making it suitable for larger ARC3800H-series systems with detectors and related devices positioned beyond practical direct communication with the hub.
Several RF Operating Modes
Airfly, normal-speed RF-HD and high-speed RF-HD provide different listed communication distances and data capabilities. This allows the system design to account for both long-range communication and compatible image or audio forwarding.
Built-In Backup Battery
A rechargeable 4,750mAh lithium battery helps keep the repeater operating during a mains interruption. The listed backup period varies according to whether Airfly, RF-HD, Ethernet or Wi-Fi communication is active.
Protected Two-Way Wireless Communication
AES128 encryption, frequency hopping and two-way communication support stable communication with compatible alarm peripherals. Tamper detection and low-battery detection provide additional device-status information.
Remote Updating and Recovery
Cloud updates can be performed remotely through the mobile app. Dual-system backup is designed to recover automatically from an update failure, while offline linkage supports continued local alarm-system operation.
Best For
- Large Homes and Multi-Level Properties: Helps extend supported alarm-device communication across larger layouts where direct hub coverage is insufficient.
- Warehouses and Commercial Premises: Supports larger compatible systems with many wireless peripherals spread across operational areas.
- Sites Requiring Multiple Communication Paths: Ethernet, Wi-Fi and RF can operate together to reduce dependence on one hub connection method.
- Image and Audio Alarm Devices: Supports forwarding image and audio data from compatible wireless peripherals.
- ARC3800H-Series Alarm Systems: Designed specifically for use with compatible hubs in the ARC3800H product family.
Why Choose the DHI-ARA46-N-W2(868)
The DHI-ARA46-N-W2(868) is a better choice than a basic single-path repeater when an ARC3800H-series installation needs wider peripheral coverage and more than one connection method back to the hub. Ethernet, Wi-Fi and RF can remain active simultaneously, while Airfly and RF-HD modes allow the installer to balance listed communication distance against compatible image and audio transmission requirements. Support for up to 128 peripherals also makes the unit suitable for larger alarm layouts rather than only a small group of nearby detectors. Available through Security Wholesalers, this repeater is particularly useful when backup battery operation, cloud maintenance, offline linkage and update-failure recovery are important parts of the system design.
Buyer Decision Tips
Compatibility Tip: The DHI-ARA46-N-W2(868) is only compatible with the ARC3800H series. It is not a standalone alarm hub and should not be selected for another Dahua hub family without confirmed compatibility.
Backup-Time Tip: The listed battery standby period changes with the active communication method. Airfly and normal-speed RF-HD provide the longer stated backup time, while Ethernet, Wi-Fi and high-speed RF-HD have a shorter listed period.
Key Features & Technical Specifications
| Product Type |
Wireless Alarm Repeater Pro for compatible ARC3800H-series hubs. |
| Hub Compatibility |
Only compatible with the Dahua ARC3800H series. |
| Wireless Peripheral Capacity |
Supports up to 128 compatible wireless peripherals. |
| Hub Connection Methods |
Ethernet, Wi-Fi and RF can connect simultaneously. |
| Ethernet Port |
1 × RJ-45 10/100Mbps Ethernet port. |
| Wi-Fi |
IEEE 802.11b/g/n/ax operating from 2400 to 2483.5MHz. |
| Airfly Frequency |
865–868.6MHz. |
| RF-HD Frequencies |
Normal speed: 865–868MHz; high speed: 2400–2483.5MHz. |
| Listed RF Distance |
Airfly: 2,000m; normal-speed RF-HD: 1,600m; high-speed RF-HD: 300m. |
| Wireless Security |
AES128 encryption with frequency hopping and two-way communication. |
| Data Forwarding |
Supports forwarding image and audio data from compatible peripherals. |
| Peripheral Pairing |
Supports automatic and manual device addition. |
| Device Monitoring |
Tamper detection and low-battery detection. |
| Updating |
Cloud updating through the mobile app with dual-system update recovery. |
| Offline Operation |
Supports offline linkage. |
| Built-In Battery |
One 4,750mAh rechargeable lithium battery. |
| Listed Battery Standby |
Up to 35 hours through Airfly or normal-speed RF-HD; up to 18 hours through Ethernet, Wi-Fi or high-speed RF-HD. |
| Power Supply |
100–240V AC, 50/60Hz. |
| Power Consumption |
Up to 22W; 1.9W standby. |
| Controls and Indicator |
Pairing and working-status indicator with reset, power and AP-switch buttons. |
| Installation |
Supports wall-mounted and desktop installation. |
| Operating Conditions |
-10°C to +50°C when not charging; 0°C to +45°C while charging; 10%–90% relative humidity. |
| Dimensions and Weight |
174.8 × 174.8 × 38.3mm; net weight 510g. |
| Casing and Certification |
PC and ABS casing with CE certification. |
Ideal Use Cases
Multi-Level Homes
Extend communication to compatible wireless detectors positioned away from the main ARC3800H-series hub.
Warehouses
Support larger alarm layouts with compatible peripherals distributed through storage and operational areas.
Offices and Commercial Sites
Use Ethernet, Wi-Fi and RF communication paths to connect the repeater to a compatible hub.
Image-Enabled Alarm Systems
Forward image and audio data from compatible wireless peripherals through an appropriate RF mode.
Backup-Focused Installations
Use the internal rechargeable battery where continued repeater operation during a mains interruption is required.
Choosing the Right Model
- Choose this model if: You have a compatible ARC3800H-series hub and need support for up to 128 wireless peripherals.
- Choose a simpler repeater if: The system does not require Ethernet, Wi-Fi, image forwarding or multiple simultaneous hub connections.
- Do not choose this model if: The installation uses a hub outside the confirmed ARC3800H series.
- Choose the RF mode carefully if: The system requires image or audio forwarding rather than basic peripheral communication alone.
- Plan the mounting position if: Mains power, Ethernet and the selected RF communication path must all be available at the repeater.
FAQs
- What is the Dahua DHI-ARA46-N-W2(868) designed to do?
The DHI-ARA46-N-W2(868) is a wireless alarm repeater designed to extend and strengthen communication between a compatible ARC3800H-series hub and supported wireless peripherals. It can connect to the hub through Ethernet, Wi-Fi and RF at the same time, providing multiple communication paths. This makes it useful where a larger property or difficult system layout requires a more resilient connection than direct hub-to-device communication alone.
- How many wireless devices can the ARA46-N-W2(868) support?
The repeater supports up to 128 wireless peripherals. Devices can be added manually or automatically, helping installers build out a larger compatible alarm system without pairing every peripheral through only one method. The repeater is not a standalone alarm hub, and its stated compatibility is limited to the ARC3800H series, so the main hub and every intended peripheral should be confirmed before purchase.
- Can Ethernet, Wi-Fi and RF operate at the same time?
Yes. The DHI-ARA46-N-W2(868) can connect to the compatible hub through Ethernet, Wi-Fi and RF simultaneously. Using several communication channels is intended to improve connection reliability rather than forcing the installation to depend on only one path. The available modes include 10/100Mbps Ethernet, 2.4GHz Wi-Fi, Airfly and RF-HD communication, with the final configuration determined during system setup.
- What wireless communication distances are listed for this repeater?
The listed maximum communication distances are 2,000 metres for Airfly, 1,600 metres for normal-speed RF-HD and 300 metres for high-speed RF-HD. These modes are designed for different communication requirements, including the forwarding of image and audio data. The selected mode should be planned around the compatible hub, connected peripherals and required data path rather than choosing the repeater only from the longest published distance.
- Does the alarm repeater continue working during a power interruption?
The repeater contains one built-in 4,750mAh rechargeable lithium battery. Listed standby time is up to 35 hours when connected to the hub through Airfly and normal-speed RF-HD, or up to 18 hours when Ethernet, Wi-Fi or high-speed RF-HD is used. Actual system planning should account for the chosen communication mode because the supported backup period differs significantly between these operating configurations.
- What security and reliability features are built into the repeater?
The DHI-ARA46-N-W2(868) supports AES128 encryption, frequency hopping, two-way communication, tamper detection and low-battery detection. It also supports offline linkage, cloud updates and dual-system backup that can automatically recover from an update failure. These functions are intended to maintain dependable operation and simplify maintenance, but they still depend on correct pairing, hub configuration and network access where cloud updating is used.
- Can the repeater forward images and audio from alarm peripherals?
Yes. The ARA46-N-W2(868) supports forwarding image and audio data from compatible wireless peripherals. High-speed RF-HD operates in the 2.4GHz band and has a listed communication distance of 300 metres, while the other RF modes provide longer listed distances. Buyers working with Security Wholesalers should confirm the exact ARC3800H hub, detector types and required image or audio functions before finalising the system design.
- Where can the DHI-ARA46-N-W2(868) be installed?
The repeater supports both wall-mounted and desktop installation. It measures 174.8 × 174.8 × 38.3mm and has a net weight of 510g. The operating range is -10°C to +50°C when the battery is not charging and 0°C to +45°C while charging, with 10%–90% relative humidity. Install it indoors where mains power, network access and the selected RF connection can be provided.
Additional Information
Dahua DHI-ARA46-N-W2(868) Datasheet
