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DIY Replacement Smart Door Lock Cylinder Support Mobile Phone APP TT lock Bluetooth 13.56mhz IC Card Digital Unlock

4 orders
US $146.87
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Smart Cylinder Lock TT Lock APP Bluetooth 13.56mhz IC Card Digital Unlock Easy Replace Original Cylinder Lock Become Smart

Phone APP Unlock / Fingerprint Unlock / IC card Unlock / Password Unlock

With Bluetooth
Support Limited-Time Password/Temporary password

USB Emergency Interface

Easy Replace Old Lock

Use 3pcs AAA 1.5V Battery

Products introduced video in Spanish //


Standard: European Standard 60mm(30/30), 70mm(35/35),80mm(40/40)
Unlock: TT Lock APP/RFID Smart Card / Password/ Mechanical key
Support: Temporary password
Colour: Silver/Black
Battery Type: AAA Battery
Bluetooth: 4.0
Battery Replacement: Replaceable
Materials: 304 Stainless Steel + Aluminum + Plastic
Adjustable Door Lock Time: Yes
Low Battery Reminder Function: Yes
Working Temperature: -25 ~ 60 degree

Mobile Phone Access:

Supported by TT lock App
TT lock App is a smart lock app, its multiple functions always satisfy your requirements. Especially for hotel, it is very easy to manage.

-Send temporary passcode/e-key remotely
-Manage passcode, smart card
-View access logs
-Open the lock by app nearly or remotely(add gateway can unlock remotely)
-Passage mode setting

About Installation:

Only need a Screwdriver to install new Smart Cylinder
It is very easy

please measure the Original Cylinder, include the panel thickness that you would know which size suit for you.

Suitable Cylinder Types

The back handle can extend up to 25mm

Package include:
1 x Smart Cylinder
2 x Mechanical keys
1 x Screwdriver
1 x English User Manual


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, you can request a refund or reshipment for ordered products if:

  • 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.

We do not issue the refund if:

  • 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 Electronics Gadget (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.

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