Nov 1, 2019 
This Article is Copyright 2019 Sherlock Pte Ltd All Rights Reserved

Xiaomi has a multitude of electronics and non-electronics merchandise bearing their brand name, including digital door locks!

In Singapore, we see Xiaomi loyalist buying these Xiaomi co-branded smart digital locks online from China, namely:

• Xiaomi Mijia
  a) Turn handle models:  there are three variants here
  - "Youth Edition" 小米米家智能门锁 青春版 (OK to install)
  -  Regular Edition 小米米家智能门锁 碳素黑 (OK to install)
  - "Overlord Edition" 小米米家智能门锁 霸王锁体 (do not order BIG size mortise, not possible to install)
  b) Push-pull handle model 小米米家智能门锁 推拉式 黑色 (hard to install, loud mortise latch)
• Xiaomi Aqara, N100, S2 (narrow body)
• Xiaomi Youdian (Youpin) M2 (push-pull handle)
• Xiaomi Loock 
• ... 

And to add on the non-Xiaomi list

• Orvibo T1C
• Kingku Smart Lock

​Installation Service / Price $180 nett
We provide installation services for these locks at $180 nett.
So call us when you have received the lock. 
Contact: 98307788, 96804569, 84846924

Notes:
- Some of these locks are very difficult to install. Please do not ask for further discounts. 
- If you are not Xiaomi fan and enthusiast with know-how on how to manage these locks and their apps, don't buy.

Buying and Installation Caveats:
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1. Narrow Xiaomi S2 Body width: The Xiaomi Aqara S2 digital lock body is slightly narrower than most locks. So be aware of what lock you are replacing. There may be some gaps if the original holes are cut wider by previous installer. It is hard to tell upfront until the existing lock is dismantled. We would suggest going with the Xiaomi Aqara or the more recent Xiaomi Mijia Smart Lock if you are not sure. If your HDB door lock is a BTO type, it should be OK to install Xiaomi Aqara S2 with it's narrow body.
   
   
2. Lock offset at 60mm: In general, China locks come with 60mm offset instead of the common 70mm we see here in Singapore. This means the "center line" of the China locks are 10mm nearer to the door edge and this offset may result in a gap appearing the side of the lock further away from the door edge. 
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3. Multi-Lock hooks mortise: The Xiaomi Aqara S2 and Xiaomi Mijia mortise that comes from most China sellers has "hooks" multi lock configuration - something typical in China metal doors but definitely not here in Singapore. If they cannot provide mortise without hooks, we will have to cut off the hooks (see picture).
   
   
4. Wrong mortise / screws / shafts for the door width: Be doubly diligent with the door width and suitable mortise (size) and corresponding screws and shafts. Double check what the seller says , double check when you have received them. If you don't do this checks, then China locks and sellers are not for you (and we can't help you here, we won't go over to install until you check and get them right).
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5. Missing items (caution!): We have seen many cases of Xiaomi Aqara S2 digital lock delivered without all the parts required. So do your own due diligence in researching how many parts / small boxes must be ordered and expected. We heard of missing screws, cylinders, and sometimes the mortise is not shipped!
   
   
6. Don't try installing yourself: There is a video below on installation of Xiaomi Aqara S2 digital lock. Don't try to install yourself! Unless you are a seasoned digital lock installer, you may end up struggling to make sense of the installation on your actual door  because watching video is no where near reality. It is not plug and play and some heavy drilling on door and door metal frame (sometimes with concrete inside can be expected). The more holes you drill , the bigger the problem becomes, and the less we can fix the problem (and we may not want to install then).
   
   
7. HDB metal door frame (with concrete filled) If your HDB door is single leaf and the HDB door frame is the old school metal with concrete filled inside, it would be a nightmare to cut the metal and break the concrete inside. We will need a lot of extra time and the rate will be higher than for standard installation (wood frame or HDB double leaf door).

Are there any recommended sellers ?

We don't have any but we will reviewing with our customers on the lock seller buying experience!