There are many new and exciting electronic locks now available on the market.
Keys are no longer needed ,just use your mobile phone or swipe cards to gain entry..
Although many of them dont really qualify as a deadlock if the inside handle cannot be made rigid ,,,its all well and good for the home owner to be able to get out kin a hurry but you dont want thiefs to be able to come and go with restrictings.
A lot of the time they will enter through the roof ,,removing roof tiles then kick the plaster in ,and them simply walk out you front door with your tv.
So make sure that they can be deadlock from the inside when your not home
Call steve at Arrow locksmiths to discuss many options on 0418570813