






🔐 Elevate your home security with smart, silent precision.
The eufy Security Smart Lock C34 is a sleek, all-in-one keyless deadbolt featuring built-in Wi-Fi and Matter compatibility for seamless integration with Apple Home, Alexa, Google Home, and SmartThings. Designed for effortless control, it offers multiple unlocking methods including fingerprint, keypad, app, and voice commands. Powered by 8 AA batteries, it delivers up to 8 months of battery life. Installation is quick and drill-free, supported by extensive warranties and 24/7 customer service, making it the perfect upgrade for modern smart homes seeking reliable, quiet, and versatile security.



















| ASIN | B0DGG5J6SB |
| Additional Features | Auto-Lock |
| Best Sellers Rank | #30,013 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #153 in Deadbolts |
| Brand | eufy Security |
| Brand Name | eufy Security |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Control Method | App, Remote, Voice |
| Controller Type | Amazon Alexa, Google Assistant |
| Customer Reviews | 3.9 out of 5 stars 215 Reviews |
| Finish Types | Painted |
| Included Components | Lock |
| Item Dimensions | 6.89 x 2.76 x 1.3 inches |
| Item Weight | 1.33 Kilograms |
| Item dimensions L x W x H | 6.89 x 2.76 x 1.3 inches |
| Lock Type | Deadbolt |
| Manufacturer | Anker |
| Manufacturer Part Number | Anker |
| Material | Steel or brass alloy |
| Material Type | Steel or brass alloy |
| Model Name | T85D2111 |
| Model Number | T85D2 |
| Number of Pieces | 1 |
| Recommended Uses For Product | Residential, for front doors or back doors |
| Smart Home Compatibility | Smart Home Compatible |
| Special Feature | Auto-Lock |
| Style Name | Matter + WiFi + 8 AA batteries |
| UPC | 194644213916 |
| Unit Count | 1.0 Count |
P**O
Great smart lock
So far good. I would say the lever can be less flimsy but it works always. The battery notification is helpful and the auto lock function works well too. Installation is fairly easy, just follow the instructions. However i have to say it is difficult ish to get the seal to properly seal the lock against the door for weatherproofing it. For the price, this is an excellent smart home lock that you can open/close from anywhere. No additional subscription needed. I actually used this to replace my schlage. The schlage build quality is nicer but i don’t think it’s 8x nicer compared to this.
A**L
Greatest support!
Initially had some issues with battery discharging faster than I expected but, geez, eufy have the greatest support I ever talked to. Issues were solved in no time.
J**.
DO NOT BUY!!!
I have been an Anker/Eufy fan for many years and have owned several of their products, but this has been my worst experience yet. I bought two of these locks, and while both installed easily and worked fine for about two weeks, they eventually went offline. I tried restarting my WiFi and removing and reinstalling the batteries, but neither lock would reconnect to WiFi. At this point, both locks were still connecting via Bluetooth. I then visited Anker’s support site, which directed me to completely reset the locks. Following their instructions, I reset one of the locks, which caused it to be completely removed from the Eufy app. When I attempted to set the lock back up in the app, it consistently failed at the WiFi setup step and could not be added back to the app. Since it is no longer set up, this lock cannot even be controlled via Bluetooth. Frustrated, I contacted support (which is only available via email). Over two weeks, I went back and forth explaining and re-explaining the issue. In the end, support said there was nothing they could do and advised me to use Bluetooth to control the locks. Because of the time wasted working with support, I am now outside the return window. As a result, I have one lock that is completely disconnected and cannot be controlled at all, and another that can only be controlled via Bluetooth when standing right next to it. Terrible experience!
J**L
The Matter is amazing!
The Eufy Smart Lock is a sleek addition to any home security system. It offers keypad entry and mobile app control. As an owner of various Eufy devices, I value how well they integrate into their ecosystem, allowing for easy monitoring and access management. The keypad works well in various weather conditions. With impressive battery life and backup options, the Eufy Smart Lock is a reliable and convenient investment for enhanced security.
R**C
This lock does not reliably work with SmartThings V3 over matter
Such a disappointment. It started out like it was going to be a real winner and went down soon enough. First of all, I have 5 bars of WIFI by the lock. I have the lock on static IP and 2.4ghz locked in via my router. Here are the issues. 1) disconnects randomly. 2) Unlinks from smarthings link 3-4 times daily - making it useless for automations 3) no push notifications sent if deadbolt cannot push out for door ajar -- it shows that this happened IN THE APP only. 4) Slow app startup, even on fast phone and 4) Corporate greed - NO Android widgets for lock and unlock... they want to force you to use their app ecosystem for all lock/unlock ops since the app it is where they post promotions, I guess. This would be a full on failure if you hope to manipulate lock I give it 2 stars and not one because. They made it easy to add other users. It works fine as a regular keypad lock. The time-of-day lock usually works fine. It looks nice. It was easy to install and pair up over Matter - something I have to do regularly. I'm now on the search for a replacement.
D**A
Best the wyze lock by a mile
Just installed this and so far so good. I had a wyze lock and it would ALWAYS jam up. No matter how much I messed with it. And it would wine and squeel to close and kill the batteries in a few days this one fit perfect. Build quality is nice but much more plastic than the all metal wyze lock but for my use case it works very very well so far. Matter set up was also very easy. Eufy app select matter then go to whatever app you have for your smart come and connect. 30 second set up in Google home app for native use right in the app and with Gemini. For the price this is a hard simple but useful lock to beat
A**E
Can Not Be Rekeyed
CANNOT REKEY THIS LOCK. Do not purchase if you want all of your locks to have the same physical key in the end. Other than that, works great, seems to be reliable after a month of use. Easy to install, looks nice.
D**N
Battery life is ok, longer than you think, but less than advertised.
About the battery life: It’s advertised as 8 months. However, within 3 months I received a low battery notification. It took 2 and a half months for the lock to fully die (though periodically it would still let me unlock it). So, in all it lasted roughly 5 and a half months. Given that it requires 8 AA batteries it’s nowhere near as efficient as a Yale, but fair for the price point. The lock was used at most 2-3 times a day, every day. It is used in an outdoor casita and seems to hold up fine with indirect weather. I would recommend not connecting it to HomeKit via Matter, as 90% of the time it failed to work and it drains the battery even more. I would disconnect it from wireless connectivity entirely (wifi, Bluetooth) if possible so it will more than likely be much closer to that 8 months of battery life. Overall, given the price point, I would recommend it as it’s never once failed to lock / unlock and it’s very easy to install. Just understand the caveat with battery life.
C**.
Dinámico
Fácil instalación, fácil integración con HomeKit, buenas funcionalidades, me encantó el diseño y tiene buenos materiales.
Trustpilot
4 days ago
2 months ago