Kaadas K20 PRO MAX RED AND BLACK

The Kaadas K20 Pro Max is what happens when you combine a smart lock, video doorbell, and door viewer into a single mortise unit — and then add 3D face recognition. The camera captures a 1080p wide-angle view and streams it live to your phone, lets you do two-way voice calls with whoever’s at the door, and even sends motion detection and loitering alerts when someone lingers outside without ringing. You get full visibility of your entrance without buying separate devices or paying for cloud storage — footage stays in the lock’s built-in memory.

Access is handled by five unlocking methods: 3D face recognition, semiconductor fingerprint sensor, PIN code, RFID card, and mechanical key — with support for dual-verification mode for households that want an extra layer of security. The Kaadas Smart app handles everything remotely: generate temporary PINs for visitors, track every entry and exit, watch the live feed, or lock up from anywhere. And because Wi-Fi is built directly into the lock, there’s no separate hub, bridge, or additional device to manage.

Day-to-day reliability is well thought out. The 6,735mAh rechargeable lithium battery lasts 6–12 months on a single charge, USB-C emergency power covers you if it ever runs flat, and the lock carries fire-rated certification for added peace of mind. Away mode, defense mode, and privacy mode cover every situation from travel to overnight lockdown — and a fake PIN feature keeps your real code hidden from shoulder-surfers at the door.

• • 50 faces; 100 fingerprints; 100 RFID cards; 21 PIN codes (1 master + 20 users)
  • 5 access methods: 3D face, fingerprint, PIN, card, mechanical key; dual-verification mode available
  • Built-in Wi-Fi; 1080p wide-angle camera; 4″ HD display; two-way video intercom
  • Away mode, defense mode, privacy mode; motion detection & duress alarm via Kaadas Smart app
  • Fire-rated certified; 6,735mAh rechargeable lithium battery; USB-C emergency backup