Options are limited for metal security door so I ended up buying Xiaomi Mijia Smart Door Lock Push-Pull from Shopee. The dimension appears to be spot-on to the current door locks so I hope installation will be straight forward.
This is the unboxing video. I have scheduled for an installation this coming week. Will try to record a video if anyone wants to self install this.
I was not able to video the installation today due to work commitment. Managed to see a bit from the CCTV at work.
Took the installer about 2 hours. He did have to use a drill and cutter to get the upper mechanism of the lock to go through, but other than that the dimension of the parts were spot on with the older lock. The original strike plate was kept as it is. The labour cost of installation was RM300.
I had to change region to China Mainland in order to get Xiaomi Home app to recognize the lock. Did not need to use VPN or a new account, just a matter of changing the location setting on the app.
Configuration was a breeze. Firmware update required a few tries before it was successful. NFC only works with Xiaomi phones. Fingerprint recognition was instantaneous so this is going to be the primary method of entry.
Overall it seems like a good buy for RM1199 (Shopee). Next plan is to get a Bluetooth WiFi gateway.