The PIR detector is composed of human detector and remote controller. After defensivesetting, the detector will give an alarm when somebody barge into the detectingarea unlawfully, thus protecting the safety of the person and property. ThisPIR detector reactions quickly, acute and credible, the sound is louder than 100dB.It is easy for installation and using. And it is available to housing, stores,factories and such places. producing area:China payment:30% advance payment, 70% balance after receiving the T/T copy