向地主推薦cheap "master" key control smartkey locks: one key for all

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Called "SMARTKEY 816 DEADBOLT KEY CONTROL"

Amazon, e-musa.com 有賣, ~$30 a piece.

The only issue is this is only for deadbolt lock, no similar thing for entry lock.

所有跟帖： 

• nice , thanks -baohulu- ♂ (0 bytes) () 10/07/2012 postreply 19:19:27

• one key for all your units -pyramid- ♂ (0 bytes) () 10/07/2012 postreply 19:31:37