1.Automatic induction: to enter the sensing range of the output is high, people leave the sensor range automatically delay off high, output low. Ultra-small size. 2.Repeatable trigger: the sensor output high, the delay period, if there is human activity in its sensing range, the output will remain high until people leave after the high variable delay (automatically extended sensor module detects the human body after every activity a delay period, and the last time an event is the starting point of the delay time). 3.Wide operating voltage range: the default operating voltage DC4.5V-20V. 4.Micropower: quiescent current Less than 50 microamps, especially for battery-powered automatic control products. 5.Output high signal: easy docking and all kinds of circuits. Applications 1.Body induction 2.Body sensors toys 3.Security Products 4.Industrial automation and control 5.Auto-sensing of electrical equipment 6.Battery-powered automatic control 1. Operating Voltage Range:DC4.5-20V 2. Static current: Less than 60uA 3. Output level: High 3.3V /Low 0V 4. Trigger: repeatable trigger (default) 5. Delay time:Default 8S + -30% (can be customized range of a few tenths - tens of minutes) 6. PCB Dimensions: 10 x 23mm 7. Induction angle: Less than 100 degree cone angle 8. Induction distance: 3 meters 9. Working temperature:-20- +80 degrees 10. Sensor Lens Dimensions:Diameter: 40mm x 10mm Material: PCB, metal colour: green Package Contents: 10 x -SR505 Mini sensing module Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.