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AI Empowering a Smarter, Safer, and Sustainable Traffic: Dahua Unveils Latest ITS Solutions at Intertraffic Amsterdam 2026

2026-03-13

AI Empowering a Smarter, Safer, and Sustainable Traffic: Dahua Unveils Latest ITS Solutions at Intertraffic Amsterdam 2026

ARD2231-W2

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ARD2231-W2

Dahua Wireless Dual-Tech Detector

Key Points
    · False detections caused by thermal interference are greatly reduced by using passive IR and microwave detection
    technologies.
    · Frequency hopping function and two-way communication technology ensure communication stability.
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Datasheet

Specifications

Function

Indicator Light 1 × green alarm indicator
Button 1 × power switch
Remote Update Cloud update
Low Battery Detection Yes
Tamper Yes
Measuring Range (Temperature) –15 °C to +65 °C (+5 °F to +149 °F) (indoor)

Technical

Sensor Dual-element low-noise PIR sensor, microwave sensor
Detection Mode PIR + Microwave
Sensitivity 3 levels adjustable
Detection Range 12 m (39.37 ft) (90°) with installtion height of 2.2 m (7.21 ft)
Detection Speed 0.3 m/s–3 m/s (0.98 ft/s–9.84 ft/s)
Microwave Frequency 24 G
Pet Immunity Level ≤ 18 kg (39.68 lb), height＜ 50 cm (19.68 ft)
White Light Resistance Level 2000 lx
Two-way Digital Temperature Compensation Yes, no attenuation of detection distance in high temperature
Test Mode Yes
Operating Current 11 uA
Alarm Current 69 mA

Wireless

Carrier Frequency 433.1 MHz–434.6 MHz
Transmitter Power (EIRP) Limit 10 mW
Communication Mechanism Two-way
Communication Distance Up to 1,200 m (3937.01 ft) in an open space
Encryption Mode AES128
Frequency Hopping Yes

General

Power Supply CR123A × 1
Battery Life 3 years(if triggered 10 times a day with a battery efficiency of 70%)
Power Consumption Max. 640 mW
Operating Temperature Indoor: –10 °C to +55 °C (+14 °F to +131 °F)
Certified temperature:–10°C to +40°C (+14°F to +104 °F)
Operating Humidity 10%–90% (RH)
Product Dimensions 104.0 mm × 60.0 mm × 50.0 mm (4.09" × 2.36" × 1.97") (L × W × H)
Net Weight 106 g (0.23 lb)
Gross Weight 184 g (0.41 lb)
Installation Wall mount
Casing Material PC + ABS
Certifications CE
Anti-corrosion Level Basic Protection
Storage Temperature Indoor: –10 °C to +55 °C (+14 °F to +131 °F)
Certified temperature:–10°C to +40°C (+14°F to +104 °F)
Storage Humidity 10%–90% (RH)
Packaging Dimensions 135.0 mm × 98.5 mm × 56.8 mm (5.31" × 3.88" × 2.24") (L × W × H)

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