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Master Lock 4401DLH-Bluetooth Smart Padlock

Model: [4401DLH]
2+ $138.60
6+ $125.56
For quantities over24
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    Product Features:

Click for more information

Additional Specs
  • Your smartphone is the key to your padlock - no more lock keys or forgotten combos!
  • With free app, enjoy speed, ease of use, share access, have greater control with temporary digital keys/codes
  • Receive tamper alerts and low battery notifications
  • Replaceable CR2 battery can be jumped with an external battery if the battery dies in the locked position
  • Backup access using an up/down/left/right directional code on the lock keypad
  • Easily add/remove guest access to 24/7 or limit to days/nights
  • Locker mode allows for maintaining a locked state while the phone is stored inside of a locker
  • Monitor lock history
  • Designed for outdoor applications with a 2 piece injection molded cover and shackle seals for resistance to weather and dry contaminants
  • Hardened boron alloy shackle for superior cut resistance
  • 2 7/32" (56mm) wide lock body; 11/32" (9mm) diameter shackle 
  • 2" (51mm) vertical clearance; 15/16" (23mm) horizontal clearance

    Best Used For:

  • Tool Chests and Tool Boxes
  • Sheds, Workshops and Garages 
  • Storage Lockers
  • Gates and Fences
  • Tools and Ladders


Lock Width

Shackle Diameter

Vertical Clearance

Horizontal Clearance

2 7/32"




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