PIR sensors

PIR vs mmWave Radar for Presence Detection: Which is Really More Reliable?

PIR sensors are simple and affordable, but limited to motion detection. mmWave radar offers advanced presence detection, even picking up still breathing. This article compares both, explains why false triggers occur, and provides practical guidance to improve reliability in real-world smart home and building scenarios.

Ningbo Linpowave

Sep 19, 2025