1.sensorial motion with radar 2.Good epistar Taiwan 3.2 years warranty 4.CE ... approved 5.Good quality and best price 1. Principle:1, Radar controlled, test ambient movement intelligently, auto-adjust work state.2 ... , avoid air machine, automobile horn, ambient temperature interruption. 4. Applications:Parking lot, basement, elevator, passageway, washroom, park,bus station, villa and ...