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

Pet immunity functionAuto temperature compensation3-level sensitivity adjustmentDisplays the temperature of the surrounding environment and supports the overheating alarmFrequency hopping and two-way communication technology ensure that communication is stableSupports cloud update and automatically restores when cloud update failsPIR and microwave motion detectionSupports jamming detection and communication encryption—FunctionIndicator Light : 1 × green alarm indicatorButton : 1 × power switchRemote Update : Cloud updateLow Battery Detection : YesTamper : YesMeasuring Range (Temperature) : Indoor: –15 °C to 65 °CMeasuring Accuracy : ±1 °CTechnicalSensor : Dual-element low-noise PIR sensor, microwave sensorDetection Mode : PIR MicrowaveSensitivity : 3 levels adjustableDetection Range : 12 m  (90°) with installation height of 2.2 mDetection Speed : 0.3 m/s–3 m/sMicrowave Frequency : 24 GPet Immunity Level : ≤ 18 kg, height < 50 cmWhite Light Resistance Leve : 2000 luxTwo-way Digital Temperature Compensation : Yes, no attenuation of detection distance in high temperature.Test Mode : YesOperating Current : 11 uAAlarm Current : 71 mAWirelessCarrier Frequency : 868.0 MHz–868.6 MHzCommunication Mechanism : Two-wayCommunication Distance : Up to 1,600 m  in an open spaceEncryption Mode : AES128Frequency Hopping : YesGeneralPower Supply : CR123A × 1Battery Life : 3 years (If triggered 10 times a day with a battery efficiencyof 70%)Power Consumption : Max. 615 mWOperating 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 mmPackaging Dimensions : 135.0 mm × 98.5 mm × 56.8 mmNet Weight : 106 gGross Weight : 184 gInstallation : Wall mount, Ceiling mount (With the bracket ARA33)Casing Material : PC ABSCertifications : CE—