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Get a quality PIR sensor from Alibaba.com and select from an endless list of quality items. The sensors are designed to detect human or particle movement within a given range. The sensors are equipped with robust infrared sensors with low-cost advantages hence suitable for large-scale applications. The sensors measure the infrared lights radiating from the object within the field view. The infrared technology makes the sensors suitable for alarm systems and automatic lighting applications. The sensors can easily detect any movement and convert the rays into electrical signals, affecting the motion sensor light and other security features.



The motion sensors use the pyroelectric sensor to detect human or animal movement within a given range by receiving the object's infrared radiation emitted. There are different types of sensors depending on the distance covered. The designs offered on Alibaba.com include indoor passive infrared, indoor curtain type, outdoor passive infrared and outdoor passive infrared curtain detector. The photo motion sensor can detect movements and immediately sound the alarm whenever human beings or animals disrupt the normal state.



The PIR sensor has varying ranges and response speeds. The sensors come unprogrammed hence the users can program the sensors with compatible interfaces and connect to the Base Shield programming and other security programs to make the sensors effective. Users can adjust features such as echo time which is the distance between the object and the detection area. Setting a longer echo time makes the sensor more effective and increases the quality of the image captured.



The PIR sensor is suitable for security within homesteads and extensive facilities such as factories. Buyers can select the best and effective sensors from Alibaba.com. Buyers have the option to choose the products based on various factors.