Introduction: Based on the principle of Doppler radar, the product is positioned for micro/motion sensing applications, sensing range: radius 3~5m (adjustable), wall-mounted or embedded installation, sensing Angle: 100°±10°, low power consumption of the module, more diverse application scenarios, with the ability of photosensitive detection (optional), pin insertion design, to achieve the distance and movement of the moving target measurement, help social security and service industry, improve the quality of production and life.