The SEN0192 by DFRobot is an Arduino-compatible, Doppler-radar-based sensor that uses microwaves to detect moving objects. Unlike conventional IR motion sensors, ambient temperatures do not affect the SEN0192. The sensor provides accurate readings regardless of humidity, noise, air, dust, or light and a high resistance to radio frequency interference, making it suitable for use in harsh environments where other sensors may fail. Applications include automatic doors, automatic washing, production line material detection, and liquid level sensing.