Description: It uses Doppler radar technology,with auto-sensing capabilities to control other product,High sensitivity,sensor distance, reliability, wide angle sensor,Wide supply voltage range and other characteristics.Widely used in lighting situations,anti-theft alarm situations.Features:1. microwave sensors using planar antenna and receiving for echo.2. The switch is active sensors.3. The sensors emit a high-frequency electromagnetic waves and receives their for echo.4. The sensors detect changes within for echo.5. The sensors detect tiny movement in detect range.6. Send signal to MCU and execution instruction.7. Signals are likely to be detected through the door, glass and thin walls.8. It will get best probe result if person or object when moving toward the sensor.9. This product is a strong anti-jamming capability,almost without wind, heat and other environmental factors foreign interferenceParameter:1. working voltage: 3.3-20VDC;2. standby quiescent current: <3mA;3. transmit power: <2mW;4. the working environment temperature: -20 ~ +80 Centigrade;5. Trigger: Repeat Trigger (default);6. the output signal: TTL level; high->3.3V/Low->0V;7. detection angle: 360掳(spherical) no dead ends;8, detection range: 3-8 meters, the default setting about 7 meters9. the working delay: 1 second to hundreds of seconds, the default setting 30S;Usage notice:1. It is better away from wall about 3-4 meter.against get sensor from another side of wall;2. Open areas more responsiveApplication:1. Security2. Intelligent Lighting3. Body sensors toys4. Industrial automation and control5. Auto-sensing electrical equipment6. Battery-powered automatic controlPackage included: 3 x 5.8GHZ Microwave Radar Sensor Module With Cable