I can imagine you could get pass it with that, but since it's just for a regular house that won't be much of a problem.
Right now I am considering one of these http://www.zktechnology.eu/index.php/categories-11/t-a-ac-terminals/kalypso-series/face-rfid-fp-86
But you need to face the device and look into it to open the door.
The optimal solution would of course be a video camera that could spot you as you approach the house and unlocks the door. Especially if you could also access the camera with your mobile phone and use that to unlock the door if theres visitors, but I would be surprised if that's also possible within a price range one can affort.
