1D/31D code readers are industrial-grade barcode scanners designed for fast and accurate data capture in various sectors. These devices are commonly used in manufacturing, logistics, retail, and healthcare for tracking inventory, automating processes, and improving efficiency. The 1D scanners read linear barcodes, while the 31D models handle more complex 2D codes, including QR codes. While '1D/31D' is not a specific brand, companies like Honeywell (USA), Zebra Technologies (USA), and Datalogic (Italy) produce such scanners under their product lines. These brands are leaders in industrial automation, offering rugged, high-performance code readers for demanding environments.