Overview
Master Lock’s 5400DAU is the portable alternative when you cannot drill into a wall. The shackle loops over most door knobs, fence rails or gate hasps, and the box holds up to five keys behind a 4-digit code. Vinyl-coated shackle helps avoid scratches; shutter door protects the dials from rain. Popular for beach houses, rentals and emergency spare-key storage.
Who this lock is for
Hosts, renters, families and property managers who need controlled spare-key access without being home to hand over a key.
Ideal for
- Airbnb and Stayz hosts
- Renters needing flexible access
- Family spare-key storage
- Tradies and cleaners
Common uses
- Share a code with short-stay guests
- Let cleaners or tradies in while you are at work
- Emergency spare key for lockouts
- Beach house and holiday rental check-in
Door & fitment notes
- Mounts beside entry doors, gates or garages
- Not a door lock replacement
When to choose something else
- Primary home security without a proper lock
- Bulky key fobs without checking internal size
Installation notes
Change the factory code before use and record it securely. Mount out of direct sight. Test opening several times before relying on it for guest check-in.
Key features
- Portable — no wall drilling required
- Shackle fits most door knobs and gate rails
- 4-digit resettable combination
- Weather-resistant metal construction
- Up to five key capacity
Product details
Master Lock’s 5400DAU is the portable alternative when you cannot drill into a wall. The shackle loops over most door knobs, fence rails or gate hasps, and the box holds up to five keys behind a 4-digit code. Vinyl-coated shackle helps avoid scratches; shutter door protects the dials from rain. Popular for beach houses, rentals and emergency spare-key storage.
