360?Ceiling Passive Motion Detector is the Fruit of Roiscok's years扙xperience on Burglar & Alarm Products. RK2000 Series has integrated Advanced Optical Design and Electronic Design, which makes it develop a style of its own in the Detective Range and False Alarm Immunity. Intelligent, Slim Design, Microprocessor Control and True Temperature Compensation and Anti-electromagnet Technology. It also use the Special Phenia Optical Lenses which Strengthen the Resistance of White Light and basically avoid False Alarm. Slim Shape Design makes Roiscok's Ceiling Series Correspond harmoniously with the Installation Environment. Full Orientation Top View is 110 ? and the Max Installation Height is up to 6m. Main Features 1.Top View 110?#65292;360?Full Orientation 2.Installation Height is Up to 6.0M 3.Dual Element Sensor Motion Detective Technology 4.Microprocessor Design Improves False Alarm Immunity 5.True Temperature Compensation 6.Dual Polarity Pulse Count is Adjustable 7.Resist Interference of white Light 8.Power Consumption is Low 9.High RFI Immunity for False Alarm Prevention (25V/M to 1GHz) 10.Professional Optical Pigmented Lenses 11.Convenient for Installation 12.Resist Fluorescent Interference 13.Memory and Form-C Relay