Hw-416-b Pir Sensor Datasheet ((link)) Jun 2026

Last updated: October 2025. Specifications are based on Revision 2.3 of the HW-416-B board. Always verify with your specific module version.

Turning off PC monitors or HVAC systems in unoccupied offices. 6. Integration Tips

If you are walking through a sensor's field of view, stop completely, and then start moving again, the sensor might miss the second movement because it is still stabilizing from the first. In robotics or high-speed detection scenarios, this latency can be an issue. However, for standard security and lighting, it is negligible. hw-416-b pir sensor datasheet

All matter with a temperature above absolute zero emits thermal energy in the form of infrared radiation. Human bodies radiate infrared light at a wavelength of roughly 9 to 10 micrometers.

Triggering a camera shutter or video recording when an animal passes by. Last updated: October 2025

On the back of the module, you will usually find two orange potentiometers for manual calibration: Sensitivity (SENS):

uses internal digital signal processing which makes it less susceptible to power supply noise or electromagnetic interference. Turning off PC monitors or HVAC systems in

Turning this clockwise increases the detection distance (up to 7 meters). Counter-clockwise reduces it (down to ~3 meters), which is useful for small indoor spaces to avoid false triggers.

Power input pin. Connect to a DC voltage source between 4.5V and 20V.