Features & Benefits:

  1. One-touch Fingerprint Verification Method (Easy Scan)
    Easy Scan technology has been applied to Conveniently read a fingerprint in one shot without the need to open or conveniently close the cover to enter a fingerprint.
  2. Voice Guide
    The Voice Guide lets you know the operation status and how to set each feature and mode.
  3. Smart Touchpad
    To prevent the password from being exposed due to residual fingerprints after opening a door, a new technology has been adopted to complete the door opening process by touching the keypad with a palm after entering the password.
  4. Anti-panic egress with Safe handle
    For convenience and in case of emergency, the door is automatically unlock whenever the inner lever handle is used. The safe handle will protect from any break-in attempts.
  5. Scramble code
    You can add meaningless number prior to or after the right code when there is a chance of exposing it to others.
  6. Alarm (Break-in / Damage)
    80dB alarm goes off if anyone attempts to damage the lock or force the door open, or if the lock detects.
  7. Security / Normal mode
    For multi-user environment, YDM4109 can be to Security (Master) mode that the master can register and delete each user while Normal mode controls all the users at one time.
  8. Operation status notification
    Whenever any operation is made, the keypad informs you what is happened through different alignment of the numbers.
  9. Mechanical key override
    For emergency, it can also be unlocked with a mechanical key.
  10. Low battery alarm and emergency power supply terminal
    It warns in case of low battery with alarm and LED. When the batteries are completely discharged, you can easily supply emergency power to the lock with a standard 9V battery.


Type Mortise lock
Fingerprint Up to 20
Mechanical key 2
PIN code 6 – 12 digits
Colour Black
Thickness suitable for 40-80mm steel and wooden door.
Back-set 60mm
Front body dimension 28.5 (D) X 68.6 (W) X 320.7 (H) mm
Back body dimension 37.0 (D) x 72.8 (W) x 306.6 (H) mm

Product Details:

  • 1 + 1 Year Digital Lock Warranty By Local Distributor
  • First Year of Warranty Full Coverage
  • Second Year Warranty labour Free Parts Chargeable
  • Prices Includes Installation on Wooden Main Door with Wooden Door Frame. An Additional Charge of $50 will be imposed for Doors with Metal Door Frame.