Dahua Alarm Wireless PIR Detector Dual-Tech ARD2231-W2(868)

• Pet immunity function
• Auto temperature compensation
• 3-level sensitivity adjustment
• Displays the temperature of the surrounding environment and supports the overheating alarm
• Frequency hopping and two-way communication technology ensure that communication is stable
• Supports cloud update and automatically restores when cloud update fails
• PIR and microwave motion detection
• Supports jamming detection and communication encryption

Function

• Indicator Light : 1 × green alarm indicator
• Button : 1 × power switch
• Remote Update : Cloud update
• Low Battery Detection : Yes
• Tamper : Yes
• Measuring Range (Temperature) : Indoor: –15 °C to +65 °C
• Measuring Accuracy : ±1 °C

Technical

• Sensor : Dual-element low-noise PIR sensor, microwave sensor
• Detection Mode : PIR + Microwave
• Sensitivity : 3 levels adjustable
• Detection Range : 12 m  (90°) with installation height of 2.2 m
• Detection Speed : 0.3 m/s–3 m/s
• Microwave Frequency : 24 G
• Pet Immunity Level : ≤ 18 kg, height < 50 cm
• White Light Resistance Leve : 2000 lux
• Two-way Digital Temperature Compensation : Yes, no attenuation of detection distance in high temperature.
• Test Mode : Yes
• Operating Current : 11 uA
• Alarm Current : 71 mA

Wireless

• Carrier Frequency : 868.0 MHz–868.6 MHz
• Communication Mechanism : Two-way
• Communication Distance : Up to 1,600 m  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. 615 mW
• Operating Temperature : Indoor: –10 °C to +55 °C 
• Certified temperature: –10 °C to +40 °C 
• Operating Humidity : 10%–90% (RH)
• Product Dimensions : 104.0 mm × 60.0 mm × 50.0 mm
• Packaging Dimensions : 135.0 mm × 98.5 mm × 56.8 mm
• Net Weight : 106 g
• Gross Weight : 184 g
• Installation : Wall mount, Ceiling mount (With the bracket ARA33)
• Casing Material : PC + ABS
• Certifications : CE