Dahua DHI-ARA43-W2 Wireless Alarm Repeater

The Dahua DHI-ARA43-W2 Wireless Alarm Repeater is designed to enhance the performance of alarm systems by extending communication ranges between the alarm hub and various accessories. It can connect up to 32 wireless peripherals and utilizes two-way RF communication to ensure reliable signal transmission. This repeater supports both manual and automatic pairing, making it user-friendly while also featuring automatic switching between dual antennas to minimize blind spots in signal coverage. The device boasts a long communication range of up to 1,000 meters in open areas, and it incorporates advanced security measures such as AES128 encryption and frequency hopping to prevent interference and ensure secure connections. Additionally, it includes a built-in lithium battery that provides backup power for over 35 hours in case of an external power failure, along with features like a low battery alarm and tamper detection for added security. The Dahua DHI-ARA43-W2 is suitable for various environments, including multi-story buildings and expansive outdoor areas, making it a versatile choice for enhancing security systems​. Dimension Application Technical Specifications Input/Output Wireless Zone 32 × wireless peripherals Port Storage Battery Built-in lithium battery Indicator Light 1 that indicates pairing and working Power Switch 1 × power switch Function Pairing Mode Auto/Manual Tamper Alarm Yes Remote Update Cloud update Power Failure Protection for Configured Parameters Yes Disconnection Detection of External Power Supply Yes Low Battery Alarm Yes Search Signal strength detection Wireless Carrier Frequency 433.1 MHz–434.6 MHz Transmitter Power (EIRP) Limit 10 mW Communication Distance Up to 1000 m (3280.84 ft) in an open space Communication Mechanism Two-way Encryption Mode AES128 Frequency Hopping Yes General Power Supply 12 VDC, 1.5 A Battery Life Battery standby time: 35 h Operating environment –10 °C to 55 °C ( 14 °F to 131 °F) (indoor) Operating Humidity 10%–90% (RH) Product Dimensions 163.0 mm × 163.0 mm × 32.0 mm (6.42″ × 6.42″ × 1.26″) Packaging Dimensions 219.0 mm × 187.0 mm × 91.0 mm (8.62″ × 7.36″ × 3.58″) Installation Wall mount; Desktop Net Weight 0.32 kg (0.71 lb) Gross Weight 0.74 kg (1.63 lb) Certifications CE Casing PC ABS SKU: DHI-​ARA‌43-​W2 Categories: Dahua, Dahua Airshield Wireless Alarms Tags: alarm repeater, dahua alarm repeater, dahua alarms, DHI-ARA43-W2