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Black aluminium fingerprint door knob with keypad and lever handle

191Y 4-in-1 Fingerprint Door Lock Black

SKU CH-CZT9-ZZBA3

A 4-in-1 smart door lock offering fingerprint, keypad, app and key access for up to 50 fingerprints and 100 codes with local data storage and auto-lock after 5180 seconds

  • Main materialAluminum
  • Biometric access in 0.2 to 0.5 seconds
  • Stores up to 50 fingerprints and 100 passcodes locally
  • 4 unlock methods: fingerprint, keypad, app, mechanical key
  • Auto-locks after 5180 seconds for continuous security
  • Fits standard U.S. doors, left or right handed

Four-in-one unlocking methods

The 191Y smart door knob supports fingerprint recognition for up to 50 users, passcodes for up to 100 users, app control via a Tuya gateway, and two mechanical backup keys. It fits standard U.S. doors and handles both left- and right-handed installations. The aluminium body houses a USB-C port for emergency power when batteries run flat.

Biometric speed and auto-lock timing

Fingerprint verification completes in .2 to .5 seconds, so entry is nearly instant even with repeated daily use. The lock automatically secures the door after 5180 seconds, removing the risk of forgetting to lock up. Privacy and Passage modes toggle with a short press or a three-second hold for quick adjustments.

Local data storage and battery operation

All fingerprint templates and access codes stay on the device with no cloud upload, keeping household data private. Alkaline batteries power the unit, and the USB-C emergency port prevents total lockout if cells are depleted. A gateway is required only when remote WiFi control is desired.

How it compares

Measured against everything we stock in Door Lock Sets & Deadbolts, at today’s prices. Recalculated every night.

Price $94.99
Pricier than about 64% of the 2,145 comparable items (median $55.99).

Specifications

Size & build
Main materialAluminum

Questions about this item

How much power does the lock draw when it runs all day on batteries?

The lock runs on alkaline batteries with no wired power draw; battery life depends on usage frequency.

What extra hardware do I need to control the lock from my phone over Wi-Fi?

A Tuya Gateway (ASIN) is required to enable app control and remote unlocking via Wi-Fi.

Will this handle fit the standard U.S. door and backset I already have?

Yes, it is designed for standard U.S. doors and works on both left- and right-handed swings.

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