At the end you stand there with a lock that sometimes the house does not complete without you noticing it. Since you can only expand again and the money is gone.
For this purpose, the purchasable to SW is very outdated and has bugs, the low battery warning is totally unreliable, sometimes depends simply unlocked and nothing works, etc.
The OGN. Uncertainty is a structural design flaw. The outdated SW shows that Burgwächter can build good Safes (I have one and am very satisfied) but to build more intelligent or PC software is available for the apparently somewhat harder. Most disappointed I am, however, of their service in this case. It will be ignored and final. Although a serious safety defect exists pushes you there dead batteries in any case in all recent consequence by zudenken: dead batteries can prevent the shutting off of the door, the user is warned for not tidy. Thus not home safely.