Dahua ARD2231-W2(868) – Wireless Dual-Tech Motion Detector 868 MHz, 12 m Range
Wireless PIR + microwave dual-tech detector at 868 MHz, up to 1600 m range, 12 m/90° detection zone, pet immunity and AES128 encryption.
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Description
The Dahua DHI-ARD2231-W2(868) is a wireless dual-technology detector combining PIR infrared and 24 GHz microwave sensing to deliver reliable motion detection with minimal false alarms. Operating on the 868 MHz band with two-way communication and a range of up to 1600 m in open space, it is a top-tier wireless sensor for professional Dahua AirShield alarm systems. Compliance with EN 50131 Grade 2 makes it suitable for both commercial and residential security installations.
Key features
- Detection technology: Dual-tech – PIR (infrared) + 24 GHz microwave
- Detection range: Up to 12 m, 90° coverage angle
- Wireless frequency: 868.0 MHz–868.6 MHz (frequency hopping)
- Communication range: Up to 1,600 m in open space (two-way communication)
- Pet immunity: Yes (prevents false alarms caused by pets)
- Auto temperature compensation: Yes
- Adjustable sensitivity: 3 sensitivity levels
- Ambient temperature: Measurement range –15 °C to +65 °C, accuracy ±1 °C; overheating alarm supported
- Encryption: AES128
- Jamming detection: Yes
- Remote update: Cloud update with automatic restoration on failure
- Tamper protection: Yes (housing-open detection)
- Power supply: CR123A battery; low battery detection
- Mounting: Wall or corner mount (ceiling mount available with optional bracket ARA33)
- Housing material: PC + ABS
- Certifications: CE; EN 50131-1, EN 50131-2-4, EN 50131-5-3, EN 50131-6 – Security Grade 2, Environmental Class II
The DHI-ARD2231-W2(868) is ideal for deployment in offices, retail premises, and homes where robust wireless motion detection with advanced communication and security features is required.
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