?The Ceiling Mount Microwave + Passive Infrared Intelligent Dome Motion Detector features intelligent signal analysis for reliable detection. It utilizes advanced Passive Infrared (PIR) technology plus microwave to continuously scan your home and detect movement from up to 10m away. When the unwanted intruder is detected£¬ it will give out a piercing alarm and the red LED light will start flashing. And it is easy to install on the ceiling. Its slim£¬ contemporary design compliments any decor. Don¡¯t hesitate to get one!                                    Features             Intelligent signal analysis for reliable detection<br> Alert you via a piercing alarm and an LED indicator<br> Utilize advanced Passive Infrared (PIR) technology plus microwave<br> Continuously scan your home and detect movement from up to 10m away<br> Easy to install on the ceiling<br> Built with anti-tamper switch<br> Slim contemporary design£¬ stable performance <br>                                                            Specifications             Detecting Distance     10m    <br> Pet Immunity     ¡Ý0.71oz / 20kg     <br> Input Voltage     9-16V DC    <br> Consumption Current     About 15 mA@12VDC    <br> Infrared Zone     12+12+6+1    <br> Maximun Coverage     (33 x 33)ft / (10 x 10)m    <br> Alarm Indicator     Red LED Light(Close iF Need)    <br> Alarm Output     N.C.£¬ >0.1A / 30V£¬ 30¦¸    <br> Anti-tamper Switch     N.C.£¬ 30V DC£¬ 0.05A    <br> Installation Height     (7.87-15.75)ft / (2.4-4.8)m    <br> Operating Temperature     (14¨H-122¨H) / (-10-50)¡æ    <br> Storage Temperature     (-4¨H-140¨H) / (-20-60)¡æ    <br> Mounting     Ceiling Mounted    <br> Color     White    <br> Weight     4.27oz / 121g    <br> Material     Plastic    <br> Dimensions     (1.43 x4.33)" / (3.63 x 11)cm (H x Dia.)    <br> Anti-Light Interference     >9000LUX     <br>                                                             Package Includes            1 x Detector<br>1 x Manual<br>