The Master Outdoor Key Safe is the world’s best selling outdoor key safe and now is available in a larger version, which is locked using a 4 wheel dial combination using a combination of 4 programmable numbers.

There is therefore a choice of 1000 different combinations to choose from and your chosen number can be easily changed at any time. The Masterlock Select Access 5403D Key Safe is designed for the following uses:

  • For storing a front door key for use in holiday homes by guests
  • For storing an emergency use key in a business premises
  • Car key or transponder storage inside your house to minimise the risk of car theft
  • Access to the home of an elderly person by Carers or Nurses
  • Spare key for use by children or family when your key has been mislaid
  • Access to a home in a residential sheltered housing scheme

Check out the following features:

  • Easy to use push button design
  • Secure and strong but lightweight aluminium construction
  • Easy to fit onto an external wall using screws and wall plugs (included)
  • Holds up to 8x Yale design or 6x Standard mortise keys (Max 8cm length)
  • Mechanical dial 4 wheel combination lock – just like on a suitcase
  • Reprogrammable, using any numbers between 0-9
  • Aluminium body does not rust
  • No batteries required
  • External Dimensions 146Hx106Wx52D mm
  •  Internal Dimensions 65Hx80Wx20 D mm
  • Weight 0.9kg


  • Competitively priced and excellent  build quality
  • Simple design and easy to operate even for the elderly or infirm
  • Weather resistant with rustproof aluminium body
  • Secures both mortise or Yale style keys up to 8cm long
  • Easy to install using screws and plugs supplied
  • Quick delivery in 1-2 working days (Next working day if ordered by noon)


  • When door is closed the combination wheels must be moved to lock
  • As with all outdoor key safes there is no universal security standard
  • It will withstand most abuse but not a violent attack

The Master Lock Key Safe is primarily designed for use as a storage unit for spare keys. As with all key safes. If violently attacked, it could be removed or broken, but these risks have to be assessed against the benefits it offers to the elderly in particular. It is a reliable and inexpensive safe that is ideal for the purpose intended.