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Dahua · Alarms

Dahua DHI-ARD323-W2(S) Wireless Door Detector

Model / SKU: DHI-ARD323-W2(S)

Dahua DHI-ARD323-W2(S) Wireless Door Detector. The Dahua DHI-ARD323-W2(S) Wireless Door Detector is designed to provide reliable security for doors and windows by triggering an alarm when a door is opened while armed. It uses a combination of a sensor and magnet to detect the door’s status, with real-time monitoring available via the DMSS App. The device features two-way communication and frequency hopping technology to ensure signal stability. It includes a tamper alarm and supports cloud updates for remote upgrades. The detector operates on a CR123A battery, offering a battery life of up to 4 years, depending on the configuration. It can communicate over distances up to 1,000 meters in open spaces and is equipped with a low battery alarm, temperature measurement, and signal strength detection. Compact and lightweight, the device is suitable for environments such as homes, shops, and apartments, and is compatible with various security systems. Installation is flexible, with a bracket mount, and the device is designed to work in both cold and warm indoor environments​. Key Features Signal strength detection Low battery alarm Temperature measurement Frequency hopping function and two-way communication technology ensure communication stability Cloud update and automatic recovery from update failure DHI-ARD323-W2 Datasheet The Dahua DHI-ARD323-W2(S) Wireless Door Detector is a compact security device designed to detect the opening or closing of doors or windows. It uses a magnetic sensor and provides real-time updates through the DMSS app, notifying users when a door is opened while the system is armed. The detector operates on a CR123A battery, offering a long battery life of up to 4 years. It features two-way communication, ensuring stable connectivity through frequency hopping technology. The device has a low battery alert and tamper detection, which activates if the device is compromised. It supports wireless communication at distances up to 1,000 meters in open spaces and provides detailed information, such as temperature measurements and signal strength detection. Installation is straightforward, with a bracket mount, making it suitable for homes, apartments, and small businesses. The device also allows for remote firmware updates via the cloud, ensuring it remains up-to-date without manual intervention. Dimension Application Technical Specifications Port Indicator Light 1 × green alarm indicator Button 1 × power button Function Tamper Alarm Yes Remote Upgrade Cloud update Low Battery Alarm Yes Test Mode Yes Search Signal strength detection Wireless Carrier Frequency 433.1 MHz–434.6 MHz Communication Distance Up to 1,000 m (3,280.84 ft) in an open space Communication Mechanism Two-way Frequency Hopping Yes Encryption Mode AES128 General Power Supply CR123A battery Power Consumption Max. 70 mW Operating Temperature –10 °C to +55 °C (+14 °F to +131 °F) (indoor) Operating Humidity 10%–90% (RH) Product Dimensions 100.2mm × 20.8mm × 20.3mm (3.94”× 0.82” ×0.80”) (L × W × H) Packaging Dimensions 135.0 mm × 98.5 mm × 27.8mm (5.31″ × 3.88″ × 1.09″) (L × W × H) Installation Bracket mount Net Weight 70 g (0.15 lb) Gross Weight 115 g (0.25 lb) Certifications CE Battery Life 4 years (The external input type is NO) 2 years (The external input type is NC or Pulse) Casing PC + ABS Temperature Measuring Range –15 °C to +65 °C (+5 °F to +149 °F) (indoor) Measuring Precision ±1 °C (±1.8 °F) Resolution 1 °C (33.8 °F) Specification Sensor Reed Switch Scenario Non-metal doors Movement Distance < 40 mm (1.57″) Peripherals External Zone 1-channel dry contact input