Hw416b — Pir Sensor Datasheet Better Fix

The HW416B PIR sensor module has three pins:

It’s very likely one of these cases:

The HW-416B (HC-SR501) is a 4.5V–20V DC pyroelectric infrared motion sensor featuring adjustable sensitivity up to 7 meters and a 0.3 to 300-second delay. To improve performance, fine-tune the onboard potentiometers for sensitivity and timing, and ensure the sensor is mounted 6-8 feet high, away from direct heat sources and Wi-Fi interference. For detailed specifications and troubleshooting, see E Control Devices PIR (motion) sensor - Adafruit hw416b pir sensor datasheet better

11 Mar 2026 — Supply voltage: 4.5V to 20V DC. Output voltage: 3.3V HIGH / 0V LOW (compatible with 3.3V and 5V microcontrollers) Detection range: Go to product viewer dialog for this item. PIR Motion Sensor HC-SR501 The HW416B PIR sensor module has three pins:

Adjustable from 5 seconds to 5 minutes (300 seconds) via a second potentiometer. Output voltage: 3