The FL100M Intelligent Smart Door Lock is designed for doors with a thickness between 35 mm to 90 mm and supports a universal handing setup. Made from durable aluminum alloy with a SUS 304 + 201 bolt, it features advanced security with a semiconductor fingerprint sensor supporting up to 100 users. The lock also accommodates 99 ID cards and 30 passcodes, with a touchpad interface and voice guidance for user-friendly operation. It runs on 4 AA batteries with a 6V working voltage and can operate in temperatures ranging from -25°C to 70°C. For emergencies, it includes a single-row 6-bead key and a 5V Micro USB power option.