HC-SR501 Pyroelectric Infrared (PIR) motion sensor module.
Operating voltage. It has a high value of 3.3 volts and a low of 0 (it is either on or off). It's delay time can be adjusted from 5 to 200seconds as well as the sensing range from 3meter to 7meters. The entire sensor with the board is 32mm by 24mm (standard pir motion sensor). The sensor either gives off a 3.3volt high value when motion is detected and then resumes or continues to give off a 0 voltage when no motion is detected. If you use an arduino or other micro controllers you can use the 3.3 volt out to power the sensor or use the 5volt power pin (vcc) to power the sensor. Either one will work.
Working voltage range: DC 4.8-20V
Static current: <50uA
High level output: 3.3 V / low 0V
Trigger mode: L unrepeatable trigger /H repeated trigger (Default Repeating trigger)
Delay time: 0.5-200S (adjustable) can be produced range 0.1 seconds - a few minutes
Blocking time: 2.5S (the default) can be produced range 0.1 seconds, tens of seconds
Size: 32mm*24mm circuit board
Induction angle: <100 degree cone angle
Working temperature: -15-+70 degrees
Induction of lens size: diameter: 23mm (default)