China 2PCS Half Egg Shaped Abo-20L Single Infrared Beam Sensor Active Beam Infrared Detector Photoelectric Sensor AG0-20, Find details about China Infrared Laser Beam Sensor, Light Beam Sensor from 2PCS Half Egg Shaped Abo-20L Single Infrared Beam Sensor Active Beam Infrared Detector Photoelectric Sensor AG0-20