This keypad smart door lock with knob combines a traditional handle design with modern electronic access features, offering a practical upgrade for residential entryways. The unit integrates a fingerprint sensor, a backlit numeric keypad, and a mechanical key override, providing multiple ways to unlock the door. The fingerprint module uses capacitive scanning technology to read fingerprint details quickly and accurately, allowing for convenient hands-free entry without the need for keys or codes. The keypad supports setting a user-defined access code, which can be shared with family members or guests. The lock body is constructed from a zinc alloy and stainless steel blend, providing resistance against corrosion and physical wear. The exterior finish is treated to resist fading and smudging, maintaining a clean appearance over time. The knob itself is designed for smooth rotation, with a spring-assisted mechanism that ensures reliable latching.

Inside, the lock houses a motorized actuator that drives the locking bolt, responding to electronic signals from the touch interface. The internal components are assembled with precision to reduce noise during operation and enhance longevity. Power is supplied by four AA batteries, which are housed in a compartment on the interior side; a low-battery alert is triggered when voltage drops, giving sufficient warning before replacement is needed. The lock can store multiple fingerprints and multiple access codes, making it suitable for households with several users. Installation is compatible with standard US door preparations, with an adjustable latch that fits doors between 1.375 and 2 inches thick. The lock is designed to function in a range of weather conditions, with an IP rated weatherproof cover protecting the exterior electronics from rain and dust. The key override provides a fallback option when batteries are depleted, and the interior thumb turn allows easy exit without keys. The overall build emphasizes practicality: the materials are selected for structural strength, and the finishing tolerances are controlled to avoid wobble or misalignment. This lock is best suited for homeowners or renters who want a straightforward smart lock upgrade without complex wiring or app reliance. The operation is entirely standalone, no Wi‑Fi or Bluetooth connectivity is required, which also means no potential vulnerabilities from network intrusion. The tactile feedback on the keypad is responsive, and the fingerprint reader works with dry or slightly moist fingers. The price point of $87.00 positions this as an affordable entry into keyless door security, offering core electronic locking functions at a reasonable cost. The overall build quality reflects attention to consistency in assembly, with the knob and handle feeling solid during use. For those seeking a simple, reliable keyless lock for a front door, this model provides a balanced combination of essential smart features and durable mechanical parts.