Please refer to the installation location image for each device and check the instructions for each unit.

＜Installation Location Image＞

・For unlocking when entering for the first time, please refer to the「Initial Move-in Setup Guide」provided at the time of your contract.

・Please note that if you enter the password or PIN incorrectly 5 times in a row, the system will be locked for about 5 minutes.

・For various unlocking methods, password changes, card registration/deletion, and other procedures, please refer to the links provided. （These links will open PDFs, videos, or the manufacturer’s website. Available in Japanese only）

■Opnus official website （FAQ）

■If the equipment was installed during your tenancy, please refer to the “Notice of Card Distribution Due to the Entrance System Replacement” provided in advance for instructions on first-time entry.

 １．DK Lock（installed on each room entrance door）

▼Instruction Manuals

・DK Entrance (Entrance Lock) Instruction Manual

・Demonstration video

▼Main Operation Methods（Videos）

・Initial setup upon move-in

・Unlocking method (PIN code)

・Unlocking method（transportation IC card)

・Unlocking method（smartphone app）

・Locking method (when auto-lock is OFF)

・Unlocking method (when the battery is dead)

・Battery replacement method

▼Emergency Unlocking Method(using the auxiliary knob)

　Instruction manual　／　Video

 ２．DK Entrance (installed at the building entrance)

▼Instruction Manuals

▼Main Operation Methods (Videos)

 ３．DK Gate (installed at the service entrance)

▼Instruction Manuals

・DK Gate (Service Entrance Lock) Instruction Manual

・Demonstration video

▼Main Operation Methods (Videos)

 What is DK Lock?

DK Lock is the general name for Daito Kentaku’s original smart lock series (DK Lock, DK Entrance, and DK Gate).

It allows you to unlock doors using your transportation IC card, PIN code, or the dedicated “DK Lock” smartphone app, eliminating the need for traditional physical keys. In case of emergency, manual unlocking is also possible using the auxiliary knob.

For more details on how to use the system, please also refer to the Opnus website (FAQ section)

＜For other electronic keys click here＞