Floricx PIR Motion Sensor Module HC-SR501 Home Security, Automation Pack of 1 PIR Sensors

This small, inexpensive module uses passive infrared (PIR) technology to detect changes in temperature caused by moving objects. It can be used in a variety of applications, such as home security, automation, and robotics. The HC-SR501 is easy to use and can be configured to trigger a variety of outputs, such as a relay, buzzer, or LED. It is also very sensitive, making it ideal for detecting even the slightest movement. If you are looking for a simple, reliable way to detect motion, the PIR Motion Sensor Detector Module HC-SR501 is a great option.