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Key Features：
· Top View 110°，360° Full Orientation
· Dual Passive Infrared Detective Technology
· True Temperature Compensation
· Microprocessor Design Improves False Alarm Immunity
· Dual Polarity Pulse Count is Adjustable
· Resist Interference of white Light
· Power Consumption is Low
· Top View Window and Creep Zone
· Professional Fresnel Optical Lens
· Ceiling Installation
· Resist Fluorescent Interference
· Installation Height is Up To 4.0m

Specification：
· Operating Voltage: 3V battery, Lithium battery powered
· Current: 40μA（Standby current），22mA（Alarm current）
· Communication Frequency: 433.92MHz
· RFI Immunity: 22V/m at 10MHz to 1GHz
· Alarm Time: ＜2.2s
· Warm-up time: 2 minutes
· RFI Immunity: 22V/m at 10MHz to 1GHz
· Operating Temperature: -10~ 55oC
· Storage Temperature: -20℃ to 60℃
·Height of Installation: < 4m
· Installation: Ceiling
· Size: φ103×21mm
· Weight：107g