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SMART LOCK GUIDES / Sep 16, 2026

Smart Cylinder Lock Guide: Keyless Fingerprint Upgrade for Existing Doors

What Is a Smart Cylinder Lock?

A smart cylinder lock replaces the cylinder of your existing door lock — the part the key goes into — with an electronic unit that supports fingerprint, RFID card, PIN and app-based unlocking. The SK-V1 smart Bluetooth cylinder lock is a keyless upgrade for apartments, offices and homes: you keep the existing lock body and door, swap the cylinder, and gain smart access in minutes.

Smart cylinder lock with fingerprint sensor and keypad

Why Upgrade the Cylinder Instead of the Whole Lock?

  • No door modification – the cylinder swaps into most standard locks directly.
  • Lower cost – a cylinder upgrade is cheaper than replacing handles, escutcheons and strike plates.
  • Flexible length – the 60-90mm adjustable range covers most door thicknesses with spacer parts.
  • Preserve your door – ideal for rented apartments and heritage doors where changes are limited.

Five Ways to Unlock

The SK-V1 supports fingerprint (up to 100), RFID cards (up to 50), PIN codes (up to 50), app control and the mechanical key for emergencies. Fingerprint recognition works with a low false rejection rate, and the C-grade cylinder core keeps a high level of physical security.

Fingerprint smart cylinder lock sensor with green indicator

App Control via Bluetooth

Through the Tuya and TTLock apps, you can manage access rights from your phone over Bluetooth and store records in the cloud. Issue a temporary PIN to a guest, check who opened the door, and manage multiple locks — all from the app. No gateway or extra hub is required for Bluetooth control.

Keyless smart cylinder lock upper and lower views with phone app

Built to Last

  • Zinc alloy body – corrosion-resistant and durable.
  • C-grade cylinder core – resists picking and drilling.
  • Low power – 3×AAA batteries with standby current under 75μA.
  • Wide temperature range – operates from -10°C to 60°C.

Who Is It For?

Smart cylinder locks are a natural fit for apartment buildings, rental units, office doors, studios and any home where replacing the full lock set is inconvenient. Landlords can reissue credentials instead of rekeying, and tenants enjoy keyless entry without changing the door.

Installation Tips

  • Measure your current cylinder length (60-90mm is covered by the SK-V1).
  • Confirm the lock body accepts a standard euro cylinder.
  • Install the included spacer parts to match your door thickness.
  • Register the lock in the Tuya or TTLock app, then enroll fingerprints and cards.

Getting Started

As a smart lock OEM/ODM manufacturer, we supply the SK-V1 with custom logo and packaging options for distributors and project buyers. Contact us for samples, bulk pricing or OEM/ODM customization.

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