HC-SR505 This Mini-PIR motion detector HC-SR505 is based on infrared technology and can be controlled with high sensitivity and reliability.

AOOD rotating electrical connectors (also called mercury slip rings or liquid metal slip rings) use a unique design principle unlike

AC 220V PIR Detector Infrared Motion Sensor Switch With Light Sensitivity and Time Delay is a PIR detection-based Infrared Motion

What is a Motion Sensor (PIR) PIR (Passive Infrared) sensors are electronic devices that detect the movement of people or