2Pcs Ir Infrared Slotted Optical Speed Measuring Sensor Detection Optocoupler xg

5Pcs Photoresistance Detection Optical Photosensitive Light Sensor Module wr

2Pcs Photoresistor Sensor Module Light Detection Photodiode With Ao Do Output cl

Photoresistor Sensor Module Light Detection Photodiode With Ao Do Output ly

2Pcs Raindrops Detection Sensor Modue Rain Module Weather Module Humidity up

2Pcs Soil Moisture Sensor Soil Hygrometer Detection Module zc

2Pcs Sound Detection Sensor Module Sound Sensor Intelligent Vehicle For Ardui qx

2Pcs Flame Detection Sensor Infrared Receiver Control Module 760NM-1100NM yi