hi atlantis2267,
Thx for ur reply!
I think I can install it myself but it is definitely better to get professional to do it for us instead.
Anyway, i think both rachael.zhang82 and interlock are the same person!? Coz the contact numbers are the same in both ads.
Just wonder if u guys only rely on the digital lock on the wooden door. Or u guys still lock the metal gate? Then still need to carry keys wat...!?