Dahua Airshield ARD2231-W2 Wireless PIR+MW Detector, 90°, up to 12m, PET immunity up to 18kg, 50cm

Dahua Airshield ARD2231-W2 — Wireless Motion Detector

When you need reliable indoor security, the Dahua Airshield ARD2231-W2 motion detector offers a combination of advanced technology and practical features. Thanks to its dual detection technology (PIR + 24 GHz microwave sensor), it ensures high motion detection accuracy while minimizing false alarms—such as those triggered by temperature fluctuations. With a detection range of up to 12 m and a 90° field of view, it effectively covers large areas, even when installed at the optimal height of 2.2 m. It is also pet-immune, accommodating animals weighing up to 18 kg and standing up to 50 cm tall, making it an ideal choice for households with pets.

Dual Technology for Maximum Accuracy

The detector combines a passive infrared (PIR) sensor with a microwave sensor, ensuring high sensitivity and the ability to detect motion at speeds ranging from 0.3 to 3 m/s. This technology, paired with automatic temperature compensation, delivers consistent performance even in high-temperature environments. Furthermore, the detector is resistant to white light interference of up to 2000 lx, ensuring that ambient lighting does not compromise its reliability.

Wireless Communication and Anti-Interference Protection

Operating on the 868 MHz frequency, the device utilizes two-way data transmission and frequency hopping technology, which ensures a stable connection even in environments prone to signal interference. With a range of up to 1,600 m in open space, the detector remains reliable even in large buildings. Data is protected by AES128 encryption, which enhances the system's security.

Simple installation and long battery life

Thanks to its compact dimensions of 104 × 60 × 50 mm and a weight of just 106 g, the detector is unobtrusive and easy to install using the included wall mount. It is powered by a single CR123A battery, which lasts for up to 3 years (based on 10 detections per day). The detector supports cloud-based firmware updates, ensuring easy maintenance and automatic recovery should an update fail. ### Technical Specifications

• Detection range: 12 m at 90° with an installation height of 2.2 m
• Pet immunity: Up to 18 kg and 50 cm in height
• Microwave frequency: 24 GHz
• Detection speed: 0.3-3 m/s
• Communication range: Up to 1600 m in an open area
• Transmission frequency: 868.0-868.6 MHz
• Encryption: AES128
• Power supply: 1× CR123A battery
• Battery life: Up to 3 years under standard usage
• Operating temperature range: -10 to +55 °C (certified for -10 to +40 °C)
• White light resistance: Up to 2000 lx
• Housing material: PC + ABS
• Dimensions: 104 × 60 × 50 mm
• Weight: 106 g

With the Dahua Airshield ARD2231-W2, you get a wireless solution offering high reliability, easy setup, and protection for sensitive areas.