-SR312 Sensor Moudle:Working Voltage: DC 2.7V - 12V; Static Power Consumption: Less than 0.1mA This AM312 Human Sensor Module is a Digital Intelligent Automatic Control Product Based On Passive Human Body Infrared Technology,Small Size ,Very Easy to Install These Human Sensor Modules are High Sensitivity and High Reliability ;Low Power Consumption and Anti-Interference Repeatable Trigger Mode: The Output of Human Sensor Module will Keep High When a Human Body Within The Module's Sensing Range,Until the People Left After the Delay,It Becomes Low((. Sensor Module Detects the Human Body Activity Will Be Automatically Extended a Period of Time Delay, and The Last Activity Time As The Starting Point of the Delay Time) Wide Applications:This AM312 Mini Human Sensor Module Can Use for Security Products,Toys,Lighting,Industrial Automation and Controller, etc. Colour:black Material:ABS+Electronic components Size:13.79 x 11.30 x 2.39 cm Package Contents: 10 x -SR312 IR Pyroelectric Infrared PIR Motion Sensor Module 1 x 10 Pin Male to Female Wire 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.