To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.Learn more how customers reviews work on Amazon
HC-SR501 PIR Motion Sensor Module, 5-Pack – Compatible with Arduino, ESP32, ESP8266, Raspberry Pi for Motion Detection and DIY Home Automation Projects
$9.49
There are no reviews yet.