RCWL-0516 is equipped with radar technology which is specially for detecting the motion of objectsEquipped with the special signal processing chip RCWL-9196Feature with high sensitivity,board detection angle, widely supply range of 4.0-28.0V and so onCompared with the infrared induction PIR, it's has the penetration detection abilityWidely used for human body adaptive forward lighting system, security alarm system and so onOperating Voltage: 4-28V Operating Current: 2.8mA (typical);3mA (max)Detection Distance: 5-7mTransmitting : 20mW (typical);30mW (max)Output Voltage: 3.2-3.4VOutput Voltage Driving Capacity: 100mA Trigger Way: repeat triggerOutput Control Low Level: 0V Output Control High Level: 3.3V Operating Temperature: -20~80 celsius 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 ;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)*32768R-GN: Detection distance adjustment; with resistor and detection distance will become shorter;if not ,detection distance is 7m;if with 1M ohm resistor,detection distance is 5m R-CDS: Internal VCC parallel with internal 1M ohm resistor to CDS pin ( is 196 9-pin) by R-CDS ,CDS connects with photoresistor,you can detection function at nightSize: 36*17.3*8.7MMColor: blueMaterial: PVBPackage Contents: 1*5PCS RCWL-0516 Microwave Radar Sensor Smart Switch ModuleOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.