automatic door sensor-wb-3001 (reference) 1)microwave motion activator (automatic door sensor) is applied to doppler radar principle. 2)able to use in any environment, there is not illegal operation, better ability than existing detector. 3)small and available size to be able internal/external setting. 4)as high technology standard for who innocent to human body. 5)adjustable detecting distance from 0.0m to 3.0m. 6)perfect detecting range by detecting angle of 40 degree ~ 160degree is able to detect the person going in and out. 7)able to stick on the wall. 8)adjustable detecting range. 9)the microwave motion activator is developed at the domestic(korea) beginning product.