SKU:DHI-ARA43-W2
Dahua DHI-ARA43-W2 Wireless Alarm Repeater
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The Dahua DHI-ARA43-W2 Wireless Alarm Repeater is designed to expand the coverage range of your security network by relaying signals seamlessly between the primary alarm hub and distant accessory devices. Supporting up to 32 wireless peripherals, it utilizes two-way RF communications to deliver steady, uninterrupted signal performance. Built for simple installation, the repeater features both automatic and manual pairing functions along with dynamic dual-antenna switching to minimize RF blind spots. With an extended transmission range of up to 1,000 meters in open areas, AES128 data encryption, and frequency hopping mechanisms, it guarantees secure, interference-free transmission. An onboard lithium backup battery provides over 35 hours of emergency standby power during electrical outages, complemented by real-time low battery alerts and integrated tamper detection. Ideal for multi-story residential properties, large commercial premises, and expansive outdoor areas, it provides a versatile signal extension solution available through Total Security Equipment.
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Vendor:
Dahua
- Description
Product Overview
The Dahua DHI-ARA43-W2 extends wireless signal reach across broad or structurally complex security deployments. By bridging distant motion sensors, door contacts, and internal sirens back to the main hub, it maintains strong, bidirectional radio frequency communication across entire sites.
Featuring automatic dual-antenna switching, the unit dynamically selects optimal transmission paths to eliminate weak signal spots. Combined with remote cloud firmware update support, power failure safeguards, and tamper defense, it delivers uninterrupted protection for home and business security installations.
Key Capabilities
Connects 32 Peripherals
Relays signals for up to 32 wireless alarm accessories, significantly expanding the effective coverage radius of a single alarm panel.
Dual-Antenna Switching
Automatically alternates between dual internal antennas to eliminate coverage dead zones and maintain optimal RF reception.
35-Hour Battery Backup
Integrated rechargeable lithium battery delivers more than 35 hours of continuous operation during mains power failures.
1,000m Long-Range Coverage
Achieves transmission distances of up to 1,000 meters in open line-of-sight environments using secure AES128 encryption and frequency hopping.
Best For
Overcomes concrete floors and internal wall attenuation between stories.
Bridges communication gaps between main hubs and distant peripheral sensors.
Extends wireless alarm monitoring out to detached structures and perimeter zones.
Maintains reliable accessory signals across expansive warehouse or retail floor layouts.
Why Choose the DHI-ARA43-W2
The Dahua DHI-ARA43-W2 solves signal range limits in challenging wireless environments. Featuring automatic dual-antenna switching, AES128 encryption, frequency hopping, and instant tamper detection, it prevents signal disruption and unauthorized removal. Auto/manual pairing simplified configuration, while 35-hour battery redundancy ensures your perimeter and internal zones remain monitored during blackout conditions. Supplied by Total Security Equipment, this repeater is essential for expanding Dahua Airshield wireless alarm installations.
Buyer Decision Tips
Key Features & Technical Specifications
| Model SKU | DHI-ARA43-W2 |
| Wireless Zones | Supports up to 32 wireless peripherals |
| Backup Battery | Built-in lithium battery (up to 35 hours standby time) |
| Status Indicator | 1 LED indicator for pairing and operational status |
| Power Switch | 1 × physical power switch |
| Pairing Mode | Automatic and Manual pairing support |
| Tamper Alarm | Yes |
| Firmware Update | Cloud-based remote updates |
| Power Failure Protection | Saves configured system parameters during power outages |
| External Power Detection | Detects and alerts on mains power disconnection |
| Carrier Frequency | 433.1 MHz–434.6 MHz |
| Transmitter Power | Limit 10 mW (EIRP) |
| Communication Distance | Up to 1,000 m (3,280 ft) in open space |
| Encryption & Security | AES128 encryption with Frequency Hopping |
| Power Supply | 12 VDC, 1.5 A |
| Operating Temperature | –10 °C to +55 °C (indoor environment) |
| Dimensions | 163.0 mm × 163.0 mm × 32.0 mm |
| Installation | Wall mount or Desktop placement |
| Net Weight / Casing | 0.32 kg / PC+ABS composite casing |
Ideal Use Cases
Multi-Level Homes
Relays signals between floors to ensure sensors on upper levels maintain a rock-solid link to the ground-floor alarm panel.
Outbuildings & Sheds
Bridges wireless signals across long yards to monitor free-standing garages, workshops, and perimeter entry gates.
Commercial Warehouses
Extends signal paths around metal racking, storage containers, and thick interior walls in industrial settings.
Complex Layout Retrofits
Eliminates the need for difficult wiring runs by boosting wireless coverage in historic or high-density properties.
Choosing the Right Model
Choose this model if:
You are running a 433 MHz Dahua Airshield wireless alarm setup requiring extended signal reach across up to 32 peripherals over large distances or multi-story structures.
Choose a different model if:
Your alarm system operates on the 868 MHz frequency band, utilizes hardwired connections, or all wireless sensors already receive full signal strength directly from the primary hub.
Additional Information
Melbourne HQ
26 Davies Ave., Sunshine North, VIC 3020
03 9079 5566
Sydney Branch
38 Lisbon St., Fairfield East, NSW 2165
02 8722 0348
Ordering & Support
- Australia-wide prompt shipping
- 100% genuine Dahua official stock with full local warranty
- Matching Dahua NVRs, junction boxes & brackets in stock
- Trade accounts and installer discounts available
- Professional technical guidance on camera positioning & network design
Need expert assistance choosing the right Dahua TiOC 180° camera or mounting hardware for your site? Contact our Melbourne team on 03 9079 5566 or Sydney on 02 8722 0348 for technical advice.
