The Dahua DHI‑ARD1731‑W2 Wireless PIR-Camera is a high-performance indoor motion detection device with built-in 2MP image capture, designed to support real-time visual alarm verification. Utilizing PIR motion sensing and RF-HD image transmission, the unit captures and sends high-resolution snapshots to the Dahua alarm hub upon detecting an intrusion. With dual-band communication (433MHz RF and 2.4GHz RF-HD), AES128 encryption, pet immunity, and cloud firmware updates, it enhances alarm system reliability while ensuring privacy — only capturing images when necessary.
What’s Included in the Box
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1 × Dahua DHI‑ARD1731‑W2 Wireless PIR-Camera
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Mounting bracket and installation hardware
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3 × CR123A batteries (subject to distributor inclusion)
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User manual

Main Features
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2MP CMOS Sensor: Captures crisp 1600×1200 resolution images when motion is detected.
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Visual Verification: Sends up to 6 HD images to the hub in ~10 seconds for rapid alarm response.
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Dual RF Technology: RF (433MHz) for control; RF-HD (2.4GHz) for image transmission.
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Pet Immunity: Ignores pets ≤18kg, reducing false alarms.
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Adjustable PIR Sensitivity: 3 levels for tailored motion detection.
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Temperature Monitoring: Displays current room temperature and triggers overheating alerts.
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Two-Way Communication: Reliable transmission with frequency hopping and encrypted channels.
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Cloud Updates: Supports OTA firmware upgrades with automatic rollback if failure occurs.
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Infrared Night Illumination: Up to 12 m of night-time visibility.

Detailed Specifications
Camera & Detection
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Sensor Type: 2MP CMOS
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Image Format: JPEG
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Resolutions Supported: 1600×1200, 1280×960, 640×480, 320×240
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Field of View: 88° (H) × 68° (V)
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Frame Rate: 2 FPS
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Illumination Mode: Infrared (up to 12 m)
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Day/Night Mode: Auto switch (Color/B&W)
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Detection Type: PIR motion detection
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Detection Range: 12 m @ 86° (2.2 m installation height)
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Detection Speed: 0.3–3 m/s
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Pet Immunity: ≤18 kg
Wireless & Communication
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RF Frequency (Control): 433.1–434.6 MHz
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RF-HD Frequency (Image Transmission): 2.4 GHz
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Communication Range:
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Encryption: AES128
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Frequency Hopping: Yes
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Communication Type: Two-way
Power & Battery
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Battery Type: 3 × CR123A
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Battery Life: Up to 4 years (2 triggers/week @ 70% efficiency)
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Low Battery Detection: Yes
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Operating Current: 65 µA (standby)
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Alarm Current (Avg/Max):
Environmental & Build
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Operating Temp: −10 °C to +55 °C
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Humidity: 10%–90% RH
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Installation: Wall mount
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Material: PC + ABS
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Tamper Detection: Yes
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Signal Strength Testing: Supported for both RF and RF-HD
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Dimensions: 127.6 × 71.0 × 53.2 mm
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Net Weight: 202 g
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Gross Weight: 333 g
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Certifications: CE, FCC

Warranty Information
Brand Overview
Dahua Technology is a leading global provider of video surveillance and smart alarm systems, offering reliable and high-quality solutions trusted by professionals in residential, commercial, and industrial sectors.
SKU
DHI‑ARD1731‑W2
Practical Use Scenarios
✔ Residential Security: Capture intrusion snapshots in villas, apartments, or homes with pets.
✔ Office & Business Monitoring: Visually verify alarms from secure areas or during off-hours.
✔ Cloud-Integrated Alarm Systems: Seamlessly transmits images to mobile apps and CMS/ARC systems.
✔ False Alarm Reduction: Dual PIR + camera verification for accurate threat assessment.
Datasheets & Resources
Excellence for the Australian and New Zealand Market
The Dahua DHI‑ARD1731‑W2 Wireless PIR-Camera meets CE and FCC certification requirements and is optimized for the environmental conditions of Australia and New Zealand. It is sourced through authorized local distributors to ensure compliance with RCM standards, secure cloud connectivity, and warranty fulfillment. A trusted solution for high‑resolution visual alarm verification with regional support.
FAQs
1. What is the Dahua DHI‑ARD1731‑W2 Wireless PIR-Camera used for? (Product Code: DHI‑ARD1731‑W2)
It detects motion and captures HD images upon intrusion, sending them to the alarm hub and app for visual verification.
2. How does the DHI‑ARD1731‑W2 transmit images? (Product Code: DHI‑ARD1731‑W2)
It uses dual-band wireless communication — RF (433MHz) for control and RF-HD (2.4GHz) to send up to 6 HD images within ~10 seconds.
3. Is the DHI‑ARD1731‑W2 suitable for homes with pets? (Product Code: DHI‑ARD1731‑W2)
Yes. It has pet immunity for animals weighing ≤18 kg and under 50 cm in height.
4. Does the DHI‑ARD1731‑W2 support cloud updates? (Product Code: DHI‑ARD1731‑W2)
Yes. It can be updated via the cloud and includes auto-recovery if a firmware update fails.
5. What is the detection range of the DHI‑ARD1731‑W2? (Product Code: DHI‑ARD1731‑W2)
It can detect motion up to 12 m away at an 86° field of view, ideal for medium-sized rooms and hallways.