The Automation Smart Fingerprint Door Lock is a reliable addition to any home security system. It offers multiple unlocking options, including fingerprint, password, IC card, mechanical key, and Tuya app. The lock is made of strong carved alloy material that ensures optimal protection for your home. Its automatic technology allows for hands-free locking and unlocking, while the indoor double lock knob adds an extra layer of security. An emergency power supply is available in case of power outages, and the rechargeable lithium battery can last up to three months on a single charge. The lock also features an English voice menu, making it easy to use. It can be installed on various doors, including wooden, stainless steel, double, and old-fashioned security doors. The lock records and queries unlock records and are compatible with left and right-open doors. It measures 395*75mm and weighs 3.7 kg. The lock is made of aluminium alloy material and comes in grey. It supports IOS 7.0 or above and Android 4.4 or above. The lock's battery life is 18 months or above and it uses one Lithium battery. It operates at a voltage of 7.2V to 8.4V, and the working temperature ranges from 20-65℃, while the operating humidity ranges from 10%-90%.