These locks too are easily and readily available with us and all you have to do is just choose it and it’s yours. There are other locks available too for your main door. You need to be sure of what you want in your lock system and then go for one of these. If high security is your priority and budget is not a constraint, Smart locks are the best whereas if your budget is a little low and you are fine with good security but not the best, then you could go for manual or mechanical locks.