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Sherlock S2 Smart Door Lock Home Keyless Lock Fingerprint + Password Work Electronic Lock Wireless App Phone Bluetooth Control

64 reviews
100% of buyers enjoyed this product! 1209 orders
US $119.99
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Note: batteries Included

Sherlock smart lock, no need to disassemble the original lock, easy to upgrade smart lock, APP control, or smart key switch door lock. Install the Sherlock Smart Lock, don’t worry about forgetting to bring the key!

99% of the locks on the market can be matched to install Sherlock locks to upgrade to intelligent locks. Please feel free to buy them. (If you are not sure whether the lock at home can match the Sherlock Smart Lock, you can take a photo and send a screenshot to our customer service to help you confirm)

Select left open and right open please see the bottom of the details.


Traditional lock upgrade
Install the Sherlock Smart Lock to solve the following problems

1. Add visitors, when traveling outside,can share virtual key with other people on APP.
2. No worries when you forget to carry keys next time.
3. Free your hands when automatic door lock is set.
4. Get relief for elderlies, too old  to accurately align the keyhole with the key to open the door.

Sherlock smart lock installed inside the door

Perfect shape design, does not affect the door unlocking mechanism, touch operated switch, better convenient door switch.

3 kinds of intelligent switch door mode
1.Wireless Smart key opening 2.Mobile APP opens 3.Touch to open the door

Remotely Distribute The Virtual Keys

Intelligent Anti-Theft Mode

Unlocking Lock APP Information Push

Smart Keys Switch The Lock Remotely (Not Included)

The Original Key Is Used Normally

Locking Anti-Collision Design

Close Child Lock

Easy To Lock

 Touch Switch with Capacitance

Large Capacity Lithium Battery

Applicable Scene

Family / Rent

Long/Short-Term Apartments Rental / Mediation Management

Professional Monitoring And Certification

Product Size

Purchase notes:

① Product direction choose:

The smart lock need to check with your home door direction (left open door or right open door),Then choose the right direction.

② Both the inner and outer sides of the lock need a keyhole

This product is suitable for anti-theft door locks,and inside the key holes are needed on side of the door lock and key switch locks can be used.

③ The doors specification:

Compared the following figures to find out which type of door locks are supported by the Sherlock smart lock?

④ The key specification:

Contrast to install the lock cylinder

⑤ Door lock perimeter size requirements

The smart lock is sticked with 3 M glue,the space need to be flat,and the door lock width is less than 73 mm.

⑥ Key size requirements

It need a key into the smart lock, here is the key size:



We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-30 Business days
Canada, Europe 10-30 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.
If you received the wrong item you can request a refund or a reshipment.
If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of BIG BUYS HERE (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

Real customer reviews

64 reviews
100% of buyers enjoyed this product!
5 stars
4 stars
3 stars
2 stars
1 star
verifed buyer
29 Nov 2019

Product as שצויין

verifed buyer
17 Nov 2019

Everything came to the turntable. without improvements. everything is clear. now I'm waiting for the keys to the phone not to climb

verifed buyer
22 Oct 2019

I mounted smart door lock, finally. First impression - it' great!

verifed buyer
1 Oct 2019

Everything works, the program is downloaded for sure, until the door was put. The moment of opening-closing is powerful, i understand how to transfer the program to family members. Came perfectly. I recommend. Looking for key rings, very expensive.

verifed buyer
30 Sep 2019

Excellent device, only can not controll from anywhere, just near the door

verifed buyer
29 Sep 2019

Its ok.

verifed buyer
25 Sep 2019

Fast shipping, good quality good price, easy to mount very good to buy

verifed buyer
25 Sep 2019

Delivery instant courier less than a week. Shop recommend, delivery corresponds to the description. S2 without keys took for 3600. The thing works, compact, thought it would be wider. The door opens, let's see how the connect will be otherwise only the decoration will become. And noisy pancake cheto, at night all neighbors can be raised by the invasion of transformers...

verifed buyer
23 Sep 2019

Everything corresponds to the description, thank you.

verifed buyer
22 Sep 2019

Received thanks. Sorry not tested yet.

verifed buyer
18 Sep 2019


verifed buyer
11 Sep 2019


verifed buyer
8 Sep 2019

Expensive article but fast delivery and effective product but a little expensive

verifed buyer
7 Sep 2019

amazing and working fine

verifed buyer
4 Sep 2019

quick delivery, excellent product!

verifed buyer
4 Sep 2019

Everything is perfect. Running everything correctly as described in the description. Shipping in 1 week. Good salesman.

verifed buyer
28 Aug 2019

exellent some tinkering but its great

verifed buyer
26 Aug 2019

Key for Sherlock S2 ok, fast delivery good store

verifed buyer
23 Aug 2019

Impeccable, vraiment a recommander!! Simple a l’installation et fonctionne parfaitement! Merci

verifed buyer
22 Aug 2019

Good store and good product

verifed buyer
21 Aug 2019


verifed buyer
19 Aug 2019

Perfect store! Very good product! Tk

verifed buyer
8 Aug 2019

Shipment dotarła very fast running machine sensationally, any problems with assembly

verifed buyer
8 Aug 2019

Nice product i love this! But i need to try

verifed buyer
3 Aug 2019

Perfect product and materials.

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582 Nashayman-e-Iqbal, Phase 1, Lahore, Pakistan