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eufy Security

eufy Security Retrofit Smart Lock E110+Wireless Keypad, Keyless Entry Door Lock Replacement, Built-in Wi-Fi, Remote Control, in-App History and Scheduled Access, Fits Your Existing Deadbolt, IP65

  • Based on 402 reviews
Condition: Used - Like New
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Color: Black


Style: Retrofit Smart Lock


Features

  • Ideal for Renters and Landlords: Easily install Retrofit Smart Locks in 10 minutes. They fit over your existing deadbolt on the inside of your door. The outside doesnt changegiving access with the original keyswhich you wont need anymore.
  • Remote Control, Anytime, Anywhere: Unlock Smart Lock anywhere, anytime, right from your phone via the eufy Security app.
  • Auto Locking and Unlocking: A built-in sensor detects when your door is closed and locks it automatically behind you, keeping your home secure even when youre in a hurry or if your hands are full. Auto unlocks when you approach with your iOS device (using location geofencing).
  • 5 Ways to Unlock: Along with Auto Unlock, you can control your lock remotely via the app, by voice, with the included wireless keypad, and it can still be opened with the original keys.
  • Advanced Security: Retrofit Smart Lock stores your in-app data locally using an AES128 encryption chip, rather than in the cloud, to keep your personal information safe and private.

Brand: eufy Security


Special Feature: Smart Lock,Waterproof,Wi-fi


Lock Type: Entry Door Lock, Smart Lock


Item dimensions L x W x H: 6.5 x 2.64 x 1.03 inches


Material: Plastic or Plastic Composite


Brand: ‎eufy Security


Special Feature: ‎Smart Lock,Waterproof,Wi-fi


Lock Type: ‎Entry Door Lock, Smart Lock


Item dimensions L x W x H: ‎6.5 x 2.64 x 1.03 inches


Material: ‎Plastic or Plastic Composite


Recommended Uses For Product: ‎Security


Style: ‎Retrofit Smart Lock


Color: ‎Black


Number of Pieces: ‎1


Finish Type: ‎Painted


Included Components: ‎Lock ：2*screw caps、4*adapters、4*CR123A batteries、1*mounting plate；Keypad：2*screws、2*anchoring、1*keypad mount、1*keypad 3M sticker、2*AA batteries、1*eufy pin


Controller Type: ‎iOS


Shape: ‎Rectangular


Item Weight: ‎1.1 Pounds


Control Method: ‎Remote


Connectivity Protocol: ‎Wi-Fi


UPC: ‎194644101862


Manufacturer: ‎Anker


Part Number: ‎T8503


Item Weight: ‎1.1 pounds


Product Dimensions: ‎6.5 x 2.64 x 1.03 inches


Item model number: ‎T8503


Batteries: ‎4 A batteries required. (included)


Finish: ‎Painted


Item Package Quantity: ‎1


Special Features: ‎Smart Lock,Waterproof,Wi-fi


Usage: ‎Built-in wifi, Auto lock,High Security cylinder.


Batteries Included?: ‎Yes


Batteries Required?: ‎Yes


Battery Cell Type: ‎Lithium


Date First Available: May 9, 2022


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • It most certainly does work with kwikset brand locks. Follow the instructions
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
Review Image by Amazon Customer Amazon Customer
I installed this lock in about 10 minutes it was easy to install in the directions are very straightforward. It works just as it should have had no issues with it thus far. The package arrived on time everything was included. I'm not sure how the battery life will last 365 days and I'm sure it won't based on other reviews so I will buy some rechargeable 3 volt batteries. The unit requires four of those and the keypad requires two AA. It's a very clean look and seems to be pretty durable. My main reason for purchasing is people tend to forget to lock the door around here and I aim to put a stop to it. Nobody on the outside with no any different that the lock is installed if you do not put the keypad outside. It's perfect for my apartment I technically didn't change the locks the landlord can still access the apartment with the original key I was given on my lease, and I have the security and comfort of knowing the door is locked. Being able to remotely lock it is the best feature I think it comes with. You can set different pins for different people so you know who is coming and going. ... show more
Reviewed in the United States on March 10, 2023 by Amazon Customer Amazon Customer
    • Not reliable
Installation was easy enough. Build quality of the lock and keypad is great. The positives stop there. The app is terrible. I’ll go to lock/unlock my door using the app, and it takes at a minimum 45 seconds to a full minute and a half to actually do what I told it to do in the app. Sometimes it doesn’t work at all and the app gives me an error. I bought the lock so I wouldn’t have to fumble with my keys when bringing up groceries/bulky items to my apartment. I found that even with this lock, I still have to dig out my key to unlock the door since the app usually throws an error message or the lock is taking way too long to unlock my door. If I have to do that I might as well just keep the old lock and save the $90. Also the keypad I received with my unit doesn’t work at all. I tried different batteries and still doesn’t work so I’m left with using the poorly made app if I want to use the smart features of this lock. Another major issue, when I was at work, the lock unlocked itself. The app wasn’t running on my phone at the time and I’m the only one with access to the app, so how did that happen. Of course, when I went into the app I couldn’t lock my door due to another vague error. I had to go back home to re lock my door and remove the batteries out of the lock. Buyer beware. Don’t buy this one. There’s many other good options out there. ... show more
Reviewed in the United States on April 20, 2023 by Robert
    • Game changer
I absolutely love this retrofit smart lock. I live in an apartment that I'm renting, so I can't completely change out the locks, but wanted a smart lock to make it easier to come and go. This is perfect since I can keep the existing lock and still use the existing key, but have the benefits of a smart lock. Also love that if I have someone housesitting, I can give them a code instead of worrying about handing off the key. The installation was extremely easy and took less than 15 minutes, start to finish. Operation of it has also been very simple, and since it's battery operated, it still worked when I had a power outage. My only negative is that I wish that there was a single app for eufy security and clean. I have a eufy smart vacuum and it requires separate apps for the two. ... show more
Reviewed in the United States on January 22, 2023 by Allysa Fritz
    • Easy Setup
This was exactly what I was looking for, a lock that I wouldn't have to rekey or potentially sacrifice lock core security. The only problem with setup, was that it took at least five tries to connect to my Wifi. It also took a few tries to get the firmware to update. App setup was super easy. So far, I cannot get it to work with Google Home, which was a big reason for picking this retrofit lock. It shows up in my home, but whenever I want to unlock it and enter my pin in, it keeps telling me its the wrong pin. Its not the biggest of deal breakers, since I use other Eufy products and their app regularly. EDIT: Not going to reduce my rating, but note that this eats through batteries. Compounding is that CR123A batteries are expensive. My solution was to buy a double pack of EBL rechargeable CR123A batteries, that way I will have a swap set while the others are charging. As a comparison I change the AAA in my Schlage Camelot maybe once every 1 to 1.5 years. ... show more
Reviewed in the United States on January 14, 2023 by Ryan
    • I WISH MORE PRODUCTS WERE THIS AWESOME
THIS PRODUCT IS AMAZING. I can not say enough good about this but I’ll try. This was delivered right before my lunch break so I decided to go home and see how easy it was. EVERYTHING was so simple. You unscrew 2 screws (my power drill made it even faster) then you take the little baggie and match the adapters up. You install the bracket that comes with it with the spacers and screw down. Then you simply spread the two wings on the side to lock it in place. Open the face and hold the button (after putting the batteries in) and Boom. Follow the app which is also AMAZING. Took me 20 mins and I still had time to eat with my wife. HIGHLY RECOMMENDED. ... show more
Reviewed in the United States on February 27, 2023 by Chris Gagliano

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