Yale YDF40 Fingerprint Deadbolt


  • Various access– PIN Code or Fingerprint for your convenience.
  • One-touch Fingerprint Verification Method (Easy Scan)
  • Invisible Keypad – Can be seen only when you touch the screen with your palm.
  • Voice Guide Feature–  Lets you know the operation status and how to set each feature and mode for easier and more convenient use.
  • Automatic Locking
  • Alarm (Break/Damage/Fire
  • Mechanical Key Override
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Various access
Yale YDF40 has two access solutions, PIN Code or Fingerprint for your convenience.

Master Code
The Master code is used for programming and for features settings. It must be created prior to programming the lock. The master code will also operate (unlock/lock) the lock.

User Code
The User code operates the lock. Maximum number of user codes are 30.
Note:When deleteing User Code(s), keypad will display User Number (not code) being deleted.

Automatic Re-lock Time
After a successful code entry and the unit unlocks, it will automatically re-lock after thirty (30) seconds.

Low Battery
When battery power is low, the Low Battery Warning indicator flashes RED. If battery power is completely lost, use the 9Volt battery override. Try to use 9V battery override apply 9V battery, in either direction, to terminals below the touchscreen for backup power option. Wake up the lock and enter your code to unlock the door.

Volume Setting Mode
The volume setting for code verification is set to High by default, otherwise it can be set to Low or Silent for quite areas.

Wrong Code Entry Limit
After five (5) unsuccessful attempts at entering a valid code, the unit will shut and not allow operation.

Tamper Alert
Audible alarm sounds if atteempting for forcibly remove outside lock from door.

User Capacity

30 different User Codes; 20 different fingerprints


Zinc die-casting



Yale YDF40 Fingerprint Deadbolt