eufy Security Smart Lock C34, Keyless Entry Door Lock with Apple Home Ecosystem, Built-in Wi-Fi Deadbolt for Front Door or Back, Supports Matter, Alexa, Google Home, SmartThings
Condition: Used - Like New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Mar 27 – Apr 12
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Style: Matter + WiFi + 8 AA batteries
Features
- Apple Home Support: eufy Smart Lock C34 seamlessly integrates with Apple Home, allowing you to unlock it using the Apple Home app on your iPhone and manage guest access easily. Its also compatible with popular third-party ecosystems like Google Home, Alexa, and SmartThings. No additional hub is required, making it easy to integrate into various smart home setups for automation.
- Up to 8 Months of Battery Life: Powered by 8 AA batteries, eufy Smart Lock provides up to 8 months of battery life based on typical usage (approximately 10 unlocks per day).
- Remote Control via HomePod or Other Hubs: Easily control your smart lock remotely through Apple Home or other apps. Enjoy features like simple setup, access management, real-time notifications, event logs, and remote unlocking. Note: Refer to the Q&A and Rich Context sections for more details.
- Easy Installation and Excellent Customer Service: Compatible with standard doors in the US and Canada, our smart lock offers easy 15-minute installation without drilling. Enjoy peace of mind with 18 months of electronic protection and 36 months of mechanical coverage, backed by our reliable after-sales service and professional 24/7 customer support.
Brand: eufy Security
Special Feature: Auto-Lock
Lock Type: Deadbolt
Item dimensions L x W x H: 6.89 x 2.76 x 1.3 inches
Material: Steel or brass alloy
Brand: eufy Security
Special Feature: Auto-Lock
Lock Type: Deadbolt
Item dimensions L x W x H: 6.89 x 2.76 x 1.3 inches
Material: Steel or brass alloy
Recommended Uses For Product: Residential, for front doors or back doors
Style: Matter + WiFi + 8 AA batteries
Color: Black
Number of Pieces: 1
Finish Type: Painted
Included Components: Lock
Item Weight: 1.33 Kilograms
Control Method: App, Remote, Voice
Connectivity Protocol: Wi-Fi
UPC: 194644213916
Model Name: T85D2111
Manufacturer: Anker
Smart Home Compatibility: Smart Home Compatible
Part Number: Anker
Item Weight: 2.92 pounds
Product Dimensions: 6.89 x 2.76 x 1.3 inches
Item model number: T85D2
Finish: Painted
Special Features: Auto-Lock
Batteries Included?: Yes
Batteries Required?: Yes
Battery Cell Type: Alkaline
Date First Available: September 9, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Mar 27 – Apr 12
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Style: Matter + WiFi + Fingerprint + 10000mAh b...
Straightforward Instalation instructions. Previous Kwikset Halo about 4 years old, and never been able to update firmware. Batteries required changing about every two months. Never again. Eufy E31 has a specific dead bolt configuration so necessary to remove previous bolt mechanism. All installation a breeze. Recognized WiFi network quickly and logged in seamlessly. Added to Alexa devices and can now voice control with code request. So far perfect replacement. Supplied rechargeable battery module pack with emergency USB power. A different excellent experience. I’ve been battling quick set and happy this lock is performing as it should. Competitive pricing a real plus.
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Reviewed in the United States on December 12, 2025 by Jeff B
Style: Matter + WiFi + Fingerprint + 10000mAh b...
Installation is very easy, it takes no more than 15 minutes if the door has the correct hole size. Quality is very good, it looks very good installed on the door. Not so bulky. Functionality is great, unfortunately it can't be connected with Home Assistant. Configuring finger prints is very straight forward and the touch pad works super fast.
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Reviewed in the United States on November 24, 2025 by Eugenio Bosatta
I have been using smart locks for years, and this is my third. The Eufy replaced an August lock, so that will be the direct comparison. The August just replaced the inside portion, so reused the deadbolt mechanism. This Eufy replaces the entire unit, which has both advantages and disadvantages. If you're a renter, or want/need to maintain the existing key, leaving the existing deadbolt is preferred. However, replacing the entire mechanism, like the Eufy does, allows for more features, like the included keypad and fingerprint reader. For the August, the keypad was an add on. The Eufy also included wifi built-in, where with the August it was a separate component that was plugged in near the lock. While that requires more batteries for the Eufy, I prefer the all-in-one solution. The other advantage of the Eufy replacing the entire mechanism is how much more positive and direct the lock feels when locking/unlocking it manually. The August would sometimes get out of sync, and when turning the lock knob by hand, it would engage the motor and you would be turning that, too. The motorized locking is also more precise, and quieter, on the Eufy. The last advantage is really only for those already using Eufy. Having it integrated with the camera app is great. If you have a camera at the entry, you can locl/unlock the door from the same screen as viewing the camera. The fingerprint scanner works great, and is faster and easier than using a code. The one complaint I have is in the app. If you add codes for people like pet sitters, cleaning people, etc., you are limited in terms of how you allow them to use the lock. It's either always or scheduled. And you can't change that without removing the code and adding it back. You also can turn a code on and off. You have to remove it and add it. That's annoying and an inexcusable oversight. Hopefully that will be addressed at some point, but I don't have high hopes.
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Reviewed in the United States on March 2, 2025 by Doug Hill
Style: Matter + WiFi + Fingerprint + 10000mAh b...
OK, I really like this smart lock. Physical installation was mechanical plug and play... took 5 minutes, literally... swapping from my old Quikset Kevo 1st gen dead bolt, which just ate batteries and worked maybe 10% of the time. Good riddance to that. The logial part of the installation was also very easy and fast. Keypad and fingerprint reader work perfectly and I had no issues with wifi, the Eufy app, or intergration with Matter partners Alexa and Apple Home (more on Apple Home later). Alexa voice control works great, however did lose its connection once where commands failed and Alexa said "there is something wrong with the Front Door (my name for the device). I had Alexa re-poll all my devices and it is back, and so far so good. I don't know if this was a one time thing or something that might become a problem. As for Apple Home, connecting the E31 to that was also simple and the Home app and Siri both controlled the lock perfectly. But as soon as the phones' screen goes off, Apple Home and Siri no longer work the next time. I get "command sent" then command failed messages and then that the device needs to have connection an Apple Home edge router or device like a HomePod, which I don't have. I may get a Mini just so I can use Siri for this lock since it is way more convenient than Alexa that needs a voice security code to unlock. The other negative is that I had all my exterior doors on one key and now I need to carry another one for this. But I knew that going in. I wish every lock maker would license QuikSet's anykey technology which makes re-keying dead simple and quick. Oh, well. The other potentially great thing about this lock is the large rechargeable battery. This looks to be a game changer, even if it gets only about half of the advertised life. No more tossing dozens of AA batteries into the trash or recycling. And hopefully much more life than the 6 weeks I used to get on the batteries for my Kevo POS. I would probably ahve given it 5 stars instead of 4 except this is day one and I have no idea how reliable this thing will prove to be or how the battery performs in the real world. Time will tell.
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Reviewed in the United States on February 2, 2026 by Raybert
Style: Matter + WiFi + Fingerprint + 10000mAh b...
Just finished installing this lock and I’m impressed. It works perfectly through the app, fingerprint, and password. The fingerprint sensor unlocks the door in just one second, and I can also open it from my phone with no delays. It’s way better than the one I had previously installed in my home. Absolutely exceptional quality. You can buy it without any doubt — you will be fully satisfied. Congratulations to the creators of this lock, it’s truly outstanding.
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Reviewed in the United States on November 26, 2025 by Wendel