RCWL-0516 is equipped with Doppler radar technology which is specially for detecting the motion of objects Equipped with the special signal processing chip RCWL-9196 Feature with high sensitivity,board detection angle, widely power supply range of 4.0-28.0V and so on Compared with the traditional infrared induction PIR, it's has the penetration detection ability Widely used for human body adaptive forward lighting system, security alarm system and so on Operating Voltage: 4-28V Operating Current: 2.8mA (typical);3mA (max) Detection Distance: 5-7m Transmitting Power: 20mW (typical);30mW (max) Output Voltage: 3.2-3.4V Output Voltage Driving Capacity: 100mA Trigger Way: repeat trigger Output Control Low Level: 0V Output Control High Level: 3.3V Operating Temperature: -20~80 celsius Storage Temperature: -40~100 celsius Adjustment Part Introduction: C-TM: Adjust repeat trigger time,default trigger time is 2s;increasing capacitor's capacity will make repeat trigger time longer;and actual counting trigger time can operate as below: Stick capacitor on C-TM,test 9196 3-pin frequency F,repeat trigger time T=(1/f)*32768 R-GN: Detection distance adjustment;connect with resistor and detection distance will become shorter;if not connect,detection distance is 7m;if connect with 1M ohm resistor,detection distance is 5m R-CDS: Internal VCC parallel connect with internal 1M ohm resistor to CDS pin (that is 196 9-pin) by R-CDS ,CDS connects with photoresistor,you can close detection function at night Size: 36*17.3*8.7MM Color: blue Material: PVB Package Contents: 1*5PCS RCWL-0516 Microwave Radar Sensor Smart Switch Module Only the above package content, other products are not included. Note: Light shooting 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.