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. Smart sensor:When human move into sensoring range,it will output High TTL level in one delay period.Then restore to Low TTL level. 2. Smart delay:If human move before sensor again,module will keep output High TTL level in one delay period until move away, 3. Radar can be ON or OFF by sound/light signal or other control signal. Parameter: 1. power supply voltage: 5V DC; 2. working current: <5MA; 3. module size: 18*16MM 4. the transmission power: < 2mW; 5. the output signal: TTL (>3V) 6. sensing distance: about 10 meters; 7. detection angle: 180 degrees; 8. the time delay: 10S-120S adjustable (default 30s) Application: 1. Security 2. Intelligent Lighting 3. Body sensors toys 4. Industrial automation and control 5. Auto-sensing electrical equipment 6. Battery-powered automatic contro