The FL200M Intelligent Smart Door Lock offers enhanced security with a total user capacity of up to 300, including fingerprints, cards, and PIN codes. It fits doors between 35 mm to 90 mm thick and comes with spindles of 70 mm, 80 mm, and 90 mm. Built from aluminum alloy with SUS 304+201 bolts, it features a semiconductor fingerprint sensor, voice guidance, and a touchpad interface. The lock operates on 4 AA batteries at 6V and supports emergency access via a 5V Micro USB or a single-row 6-bead key. It performs reliably in temperatures from -25°C to 70°C with universal handing.