แแฆแฌแแ แ
>ย Alarm indicator: Red led;
>ย Two way power supply;
>ย Low battery indicator:ย Blueย led;
>ย Sensor: Dual element infrared sensor;
>ย Digital circuit, using microprocessor;
>ย Two-way digital temperature compensation;
>ย Super anti false positives;
>ย SMT manufacturing process, anti RFI, EMI interference;
>ย The pulse countย adjustable;
>ย ABSย plasticย material.