The Papaiz Smart Lock SL135 Built-in Electronic Lock has 2 opening methods: Biometrics and mechanical key, you no longer need to worry about passwords or cards, bringing ease and speed. With built-in locking, it can be installed on aluminum, iron or wooden doors that open to the right or left, inwards or outwards, with a thickness between 30 and 40 mm. TECHNICAL SPECIFICATIONS: - Built-in electronic lock; - Reversible Tongue and Latch (higher than the ABNT TYPE IV standard); - Door handle and rosette in Zamac; - For doors with a thickness of 30 to 40mm; - Access via biometric reader and key; - Registration of up to 30 users with biometrics; - Automatic Locking; - Free passage mode; - Micro USB input for external power supply. battery emergency; - Powered by 4 AAA batteries - Reset button to factory default; - Emergency key (02 keys included). - Low battery warning; 1 year warranty from the manufacturer