9 Barcode readers, cameras, electric sensors, scanners, touch screens, and scales, and other sensor-based electronic devices, namely, ultrasonic sensors, temperature sensors, pressure sensors, electronic sensors, optical sensors, motion sensors, and proximity sensors, for placement on shopping carts, trolleys, dollies, or shopping baskets that detect, identify, scan, transmit and upload information for the purchase and checkout of goods; barcode readers, cameras, electric sensors, scanners, touch screens, and scales that detect and weigh goods to monitor inventory and purchase goods in a retail setting; computer hardware for placement on shopping carts, trolleys, dollies, or baskets containing barcode readers, cameras, electric sensors, scanners, touch screens, or scales that detect, identify, scan, transmit and upload information for the purchase and checkout of goods; downloadable software with computer vision algorithms and sensor fusion to identify products placed in shopping carts, trolleys, dollies, or baskets; downloadable software for facilitating the sale of goods and services, namely, tracking sales and inventory, categorizing of merchandise, recognizing and detecting products, images, and text, and processing payments; electronic point of sale (POS) systems comprised primarily of point of sale terminals, bar code readers, scanners, electric sensors, touchscreen monitors, and recorded operating software placed on shopping carts, trolleys, dollies, or baskets to facilitate contactless payments and checkout of goods