Advanced Password Security: Our Smart Security Door Lock features a unique design with sensitive button input and supports up to 50 sets of passwords, each 4-8 digits long. This versatility makes it practical and accessible for users of all ages, surpassing traditional mechanical locks in performance and security. Adjustable and Easy Installation: The lock includes a 60-70mm (2.36-2.76in) adjustable locking tongue, making it simple to install and convenient to use. This flexibility ensures it fits a variety of door types and sizes. Enhanced Password Protection: Users can frequently change passwords to enhance security and prevent unauthorized access. The lock also includes an anti-monitoring function; by entering a few extra digits before the correct password, you can effectively deter potential observers from guessing your code. Low Battery Alerts: Equipped with a low battery reminder, the lock alerts you with a buzzer sound and flashing red light when the voltage drops below 4.8V, ensuring you never get locked out due to power failure. Quiet Operation: Designed with a low-decibel mechanism, this lock operates quietly to avoid disturbing your household, especially at night, providing peace of mind without noise distractions. Long Battery Life: Powered by 4 AA alkaline batteries, the lock boasts ultra-low power consumption, providing a long service life of up to one year, reducing the need for frequent battery replacements. Emergency Access: The lock comes with emergency keys that can be stored discreetly in a safe place, such as your car, providing a reliable backup option for entry. Automatic Locking Feature: To enhance security, the door automatically locks after 3 seconds, reducing the risk of theft and ensuring your belongings are protected at all times. Intrusion Alarm System: If an incorrect password is entered three times consecutively, the lock triggers an alarm and locks the keyboard for approximately 3 minutes, alerting you to potential security threats. Elevate your home security with our Smart Electronic Door Lock, combining cutting-edge technology with user-friendly features to provide optimal protection and peace of mind.