1D/4D code readers are industrial tools used for scanning and decoding barcodes and QR codes, typically in manufacturing, logistics, and automation sectors. These devices are produced by various brands worldwide, including major companies like Honeywell (USA), Datalogic (Italy), and Zebra Technologies (USA). They enable efficient tracking, inventory management, and process automation by reading 1D linear barcodes and 2D/4D matrix codes. Common models include handheld scanners, fixed-mount readers, and mobile computer-integrated systems. These products are widely distributed through industrial suppliers like Radwell and Grainger.