SN-MW701 FDC microwave motion sensor, a new energy-saving switch, adopts a microwave sensor with high-frequency electromagnetic waves (5.8 GHz) and an integrated circuit. It gathers automatism, convenience, safety, energy-saving, and practical functions. The wide/detection field depends upon the detectors. When one enters the detection field, it can start the load at once and automatically identifies day and night. The installation of this product is very convenient, and it can be used for a wide range of applications. It can be detected easily through doors, glass panes, or even thin walls, making it ultra-reliable as there are no gaps in the detection zone.