Treedix 3pcs HC-SR501 Human Body Infrared Sensor Module Infrared Pyroelectric PIR Module Motion Sensor Detection Module

Features:· HC-SR501 human sensor module, it can be divided into two parts: infrared sensitive crystal and processing circuit.· The module is an automatic control module based on infrared technology, adopts the original imported probe design, high sensitivity, strong reliability, and ultra-low voltage working mode· Fully automatic sensing: when someone enters the sensing range, the input high level, when the person leaves the sensing range, the high level is automatically turned off with a delay, and the output low level· Photosensitive control (optional): The module has a reserved position, which can be set for photosensitive control, and does not sense during the day or when the light is strong. Photosensitive control is an optional function, and no photoresistor is installed at the factory. If necessary, please purchase separately· Widely used in all kinds of automatic induction electrical equipment, especially automatic control products powered by dry batteries, human body inductio