With its large fingerprint sensor and anti-spoofing facial recognition algorithm, this smart door lock combines security with convenience. Additional unlocking options include codes, NFC, Bluetooth recognition and a physical backup key. The built-in C-class cylinder has seven security sensors to enable real-time monitoring and operation of a remote alarm. The lock is made of a durable zinc alloy. This finely brushed metal results in a modern, minimalist look underscored by the associated IML control panel.