DFRobot Gravity Microwave Motion Detector Sensor

The Microwave Motion Detector Sensor applies the Doppler effect to detect moving objects using microwaves. This differs from the method used by a regular infrared (IR) sensor as microwave is sensitive to a variety of objects that are microwave-reflective, and its sensor readings are not affected by the ambient temperature. Non-contact detection; Strong resistance to radio frequency interference; Wide detection range and high velocity; Supports non-living object detection