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Strong capacity of anti-misinformation and good detecting Fit for ceiling mount Uses full range accurate temperature compensation, sensitivity keeps stable in spite of circumstance temperature change 110-degree detecting angle Super low power consumption design Built-in power supply Built-in extended groove facilitates compatibility of different hosts Best circuit design, double pulse count detector function With high priority, when in alarm 10 seconds delay time of entering or exiting defense zone and remote monitoring time Functions: wireless doorbell, staying behind for defense organizing, intelligent prompt, when AC is cutting off
