Skip to content
Rainbow SkySMART LOCK MANUFACTURINGRequest a quote
← Back to Blog

SMART LOCK GUIDES / Sep 14, 2026

Smart Fingerprint Access Control Guide: Tuya WiFi Metal Readers with Attendance for Offices

What Is Smart Fingerprint Access Control?

Smart fingerprint access control uses a fingerprint sensor as the primary credential, with RFID cards, PIN codes and a smartphone app as alternative or combination methods. A smart reader such as the SK-K33S Tuya WiFi fingerprint access controller stores credentials locally, verifies identity in under a second, and lets administrators manage the whole system remotely over WiFi.

Smart fingerprint access controller with Tuya WiFi app remote control

Why Offices Choose Fingerprint Readers

Fingerprints cannot be lost, forgotten or handed to another person the way cards and keys can. For offices and studios, this means cleaner access records, no re-issue costs after someone leaves, and a more professional first impression at the door. Combined with a metal case and IP68 waterproof rating, the reader also survives lobby, entrance and outdoor installation.

Fingerprint + Card + PIN: Multiple Ways In

Not every visitor should be enrolled in the fingerprint database. The SK-K33S supports three additional credentials: 125kHz EM cards, 13.56MHz IC cards and 6-digit PIN codes. You can mix methods — employees use fingerprints, contractors receive temporary PIN codes, and visitors use cards — without lowering security.

Tuya App: Remote Management over WiFi

With the Tuya App, facility managers can unlock doors remotely, create time-limited passwords, and review entry records from a phone. There is no need to visit the reader for every change. This is especially useful for offices with multiple doors, shared workspaces and after-hours deliveries.

SK-K33S smart fingerprint access controller specifications zinc alloy metal case

Attendance and Access Records in One Device

Many small and medium businesses use the same door reader for clock-in and access control. The SK-K33S supports attendance management, so entry records can double as time and attendance data — one device, two functions, no extra wiring.

Built for Tough Environments

  • Zinc alloy metal case – vandal-proof housing that resists physical attack.
  • IP68 waterproof – glue-filled and sealed against rain, dust and humidity.
  • Wide voltage 12V-24V – installs cleanly on AC or DC power supplies.
  • Wiegand 26-34 output – connects to external readers or existing controllers.
  • 1,000 cards / 100 fingerprints – ample storage for most office and residential projects.

Installation Checklist

  • Mount the reader at a height comfortable for fingerprint scanning (usually 1.3-1.5 m).
  • Connect the NO/NC lock output to your electric strike, magnetic lock or mortise lock.
  • Provide AC/DC 12-24V from a certified access control power supply.
  • Confirm 2.4GHz WiFi coverage before programming the reader in the Tuya App.

Applications

Smart fingerprint access control suits office entrances, meeting rooms, server rooms, apartments, gyms, studios and residential gates. As a smart lock OEM/ODM manufacturer, we supply the SK-K33S with custom logo and packaging options for distributors and installers. Contact us for samples, bulk pricing or OEM/ODM customization.

LET’S BUILD YOUR NEXT PROJECT

Your market. Your brand.
Our smart lock expertise.

Talk to our team about product selection, samples and OEM/ODM requirements.

Discuss your project
MINITEST