Nano F16 is a new energy-saving switch; it utilizes a microwave sensor with high-frequency electromagnetic waves (5.8GHz) and an integrated circuit. It combines automatism, convenience, safety, energy-saving, and practicality. The extensive detection field varies based on the detectors used. When someone enters the detection field, the device can activate the load immediately and distinguish between day and night automatically. Installation is straightforward, and its applications are diverse. Detection can occur through doors, glass panes, or thin walls, making this an ultra-reliable sensor with no gaps in the detection zone.