Distance/Proximity Sensors
    5-Ch way Line Tracking Infrared Sensor B...
    2.25GHz Microwave Radar Detector Module ...
    Bracket Holder for Ultrasonic sensor fix...
    8-Ch way Line Detecting Tracking IR Infr...
    M18 8mm sensing DC 5V PNP NO LJ18A3-8-Z/...
    Long Range Ultrasonic Range Module for A...
    APDS-9900 Environment Sensor for Arduino...
    Lidar Range Finder Sensor Module for Pix...
    Metal Sensor TL-W5MC1 for Metal Detector...
    360 Degree Radar 5.8GHz Microwave Moveme...
    Waterproof Ultrasonic Module JSN-SR04T W...
    Optical Flow Mouse Sensor ADNS-3080 for ...