good alternative to "Schlüsselunterderfußmatte"

We recently replaced our old front door. Our previous model was a fitting handle - handle (ie jack inside and outside jack) and our new now has a set Pull handle - handle. The downside of the new door is: if you incurs from the outside, you will not come in without key. Since the door is now more stable, they also no longer gets it in such a case to use a screwdriver and a little fumbling ;-)

So what to do in order to get the key in an emergency? Spare key under the mat, the neighbors deposit, hiding in a secret location ... these are all no safe alternatives: under the mat looks yes anyone to first, the neighbor is often not there when you need him and this "secret location" there are in fact not really.

Alternatively here offer such key boxes. The is available with or without bracket, secured electronically or mechanically and in a variety of sizes. We have (mechanical ironing) chose this model and have not been disappointed. Why ?:

1 with 17.99 EUR was offered by all key boxes the cheapest model ;-)
2. a padlock has the advantage that you can fix it easily relatively safe to a fixed point (the bracket is also big enough for eg a fence post or spine). A key box without wires should have been safe screw that's not the whole box is stolen and for that we simply had no suitable place.
3. a mechanical lock was important to us because Electronics for a relatively vulnerable and on the other hand usually works with batteries that must be replaced regularly.

This padlock Frost Fire is processed very clean. Between the cover and the housing there is no play, at the top of a round steel is welded to the reinforcement so that this housing by conventional means (pliers, screwdriver) not easily crack. The temple is covered with a clear PVC tube and the rear of the key box is padded with foam. The housing is mechanically interlocked with the 4-digit combination lock. The combination lock can be individually encode encode against accidental mechanics is secured. The numbers of the keypad are a bit difficult to read, you can see this really only properly when viewed perpendicular to the castle. This should be observed prior to the application. The temple is also blocked, the lock can only be opened in case solving (advantage: when opening the case of the bracket remains closed).

Funny People. a few days ago (frost, first snowfall) I left our house without a key and have also noticed that only in the office. No problem: the late afternoon unlocked at night in the light of the iPhone displays the Frost Fire and digested with the spare key, the house ...

So, from me: clear recommendation!