SafeZone HD Smart Door Lock with Camera

 Advanced 3D Facial Recognition

Unlike older 2D systems that could sometimes be fooled by a photo, the H20 typically uses 3D structured light or infrared sensors.

• Day & Night: It can recognize your face in total darkness thanks to the infrared camera.

• Speed: It typically unlocks in less than 0.5 seconds as you approach the door—perfect for when you're carrying groceries or gear.

• Liveness Detection: It is designed to distinguish between a real person and a high-resolution printout or video of a face.

2. Integrated Video Intercom (The "Indoor Screen")

One of the best features of this model is the built-in LCD screen on the interior panel.

• Electronic Peephole: When someone rings the integrated doorbell, the outside camera sends a live feed to the indoor screen. You can see exactly who is outside without having to look through a tiny glass hole.

• Mobile Alerts: Most H20 models connect to your Wi-Fi (often via the Tuya or TTLock apps), sending a photo of the visitor to your phone so you can unlock the door remotely.

3. Enhanced Power Management

Because facial recognition and video screens use more power than a simple fingerprint scanner, this lock usually comes with a Large Capacity Rechargeable Lithium Battery (often around 4200mAh) rather than standard AA batteries.

• Emergency Port: If the battery dies, there is a USB emergency port at the bottom of the exterior handle to jump-start the lock with a power bank.

• Mechanical Key: There is still a hidden keyhole for a physical override.

Key Components (From your Image)