HC-SR501 HC SR501 HC-SR505 NEW Adjust Infrared IR PIR Motion Sensor Detector Module Security Motion buy it!
$0.30-$0.70
YET609 Automatic Infrared sensor/Gate photocell/safety beams system buy it!
$4.80-$6.50
G18 NPN PNP NO NC AC DC IP67 Waterproof Plastic Diffuse infrared Photoelectric sensor switch buy it!
$4.00-$6.50
Lanbao PSV PNP /NPN NO/NC DC 10-30V 100mm Disuse Photoelectric beam sensor infrared detector buy it!
$10.18-$19.90
DC 12-24V Waterproof Outdoor Digital Photo Beam Sensor Active Single Infrared Beam Sensor For Access Control System
$2.90-$3.10
