SR501 HC-SR501 Adjust IR Pyroelectric Infrared PIR module Motion Sensor Detector Module for arduino
Infrared sensor with control circuit board
The sensitivity and holding time can be adjusted
Working Voltage Range: DC 4.5V- 20V
Current drain: < 60uA
Voltage Output: High/Low level signal:3.3V TTL output
Detection lh distance: 3–7M(can be adjusted)
Detection range: