ZM-900 is the most effective solution to prevent the scanning of fake QR-code, it featured an ultra-low-power screen that refreshes the QRcode regularly. With ZOOY’s algorithm, the encrypted QR-code will never repeat, as well as unable to decode and copy. Even scanning the fake QR-code, the app will never store as patrol logs. It is designed for industrial environment with IP65 rating, waterproof and shockproof. Even under strong sunlight, backlight situation, ZM- 900 still offers a well scanning experience.