1. Wide Working Voltage Range: DC 4.5V- 20V
2. Current Drain: <60uA
3. Detection Angle: <140°
4. Detection Distance: 3 to 7m (can be adjusted)
5. Blockade time: 2.5s (Default)
6.  Work temperature: -20-+80°C
7. Infrared Sensor with Control Circuit Board
8. The Sensitivity and Holding Time are adjustable.
9. Blockade time: 2.5s (Default)
10. Sensitive Setting: Turn to Right, Distance Increases (About 7M); Turn to Left, Distance Reduce (About 3M)
11. Time Setting: Turn to Right, Time Increases (About 200S); Turn to Left, Time Reduce (About 5S).

The PIR Motion Sensor Detector Module HC-SR501 allows you to sense motion. It is mostly used to detect the motion of a human body present within the sensor’s range which can be adjusted between 3 to 7 meters. It is often referred to as “PIR”, “Pyroelectric”, “Passive Infrared”, “IR Motion” sensor or "Pyroelectric Infrared Motion Detection Sensor".

The module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens. It has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer. Repeat Trigger Selection Jumper is also available. Compatible with ARDUINO, RASPBERRY PI, etc.

The blocking time potentiometer is also provided on-board to set the blocking time during which the sensor does not respond to any change in motion. The minimum blocking time that can be set is 2.5 seconds and a maximum of 10 seconds.