10Pcs TCRT5000L TCRT5000 Reflective Optical Sensor Infrared IR Switch infrared

10pcs 8605-2 Switch Human Body Infrared PIR Pyroelectric Sensor Fresnel Lens

10pcs 8120-5 PIR Lens Human Infrared Sensor Fresnel Lens Pyroelectric Sensor

10pcs Sensor Infrared induction Fresnel Lens HDPE Plastic Dome

10pcs 2915 Human Body Pyroelectric infrared Sensing Sensor PIR Fresnel lens

10pcs 8120-3 Sensor Infrared induction Fresnel Lens HDPE Plastic Dome

Sharp GP2Y0A710K0F IR Range Sensor/Infrared Proximity 100-550cm distance

IR-LEAK SF6 gas infrared leak detector, without power supply /hyy/