RCWL-0516 is equipped with Dopplerradar technology which isspecially for detecting the motion of objectsEquipped with the special signal processing chip RCWL-9196Feature with high sensitivity, board detection angle, widely power supply rangeof 4.0-28.0V and so onCompared with the traditional infrared induction PIR, it's has the penetrationdetection abilityWidely used for human body adaptive forward lighting system, security alarmsystem and so onOperating Voltage: 4-28V Operating Current: 2.8mA (typical);3mA (max)Detection Distance: 5-7mTransmitting Power: 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 CelsiusStorage Temperature: -40~100 Celsius Adjustment Part Introduction: C-TM: Adjust repeat trigger time, default trigger time is 2s;increasingcapacitor'scapacity will make repeat trigger time longer; and actual counting trigger timecan operate as below: Stick capacitor on C-TM, test 9196 3-pin frequency F,repeattrigger time T=(1/f)x32768R-GN: Detection distance adjustment; connect with resistor and detectiondistance will become shorter; if not connect, detection distance is 7m;ifconnect 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 photo resistor, you can closedetection function at nightSize: 36x17.3x8.7MMColor: blueMaterial: PVBPackage Contents: 1x5PCS RCWL-0516 Microwave Radar Sensor Smart Switch ModuleOnly the above package content, other products are not included.Note: different displays may cause the color of the item in the picture alittle different from the real thing. The measurement allowed error is +/-1-3cm.