







🔐 Unlock the future of home security—smart, sleek, and always connected.
The eufy Security Smart Lock C34 is a versatile, keyless deadbolt designed for seamless integration with Apple Home and other major smart home ecosystems. It offers multiple unlocking options including app, keypad, physical key, and voice commands, powered by 8 AA batteries delivering up to 8 months of battery life. Installation is quick and drill-free, making it ideal for modern homes. With robust warranties and 24/7 support, it combines convenience, security, and smart technology in one sleek package.




































| ASIN | B0DGG5J6SB |
| ASIN | B0DGG5J6SB |
| Additional Features | Auto-Lock |
| Brand Name | eufy Security |
| Color | Black |
| Connectivity Protocol | Wi-Fi |
| Control Method | Voice |
| Controller Type | Amazon Alexa |
| Customer Reviews | 4.0 4.0 out of 5 stars (201) |
| Customer reviews | 4.0 4.0 out of 5 stars (201) |
| Date First Available | 19 September 2024 |
| Finish Types | Painted |
| Included Components | Lock |
| Item Dimensions | 17.5 x 7 x 3.3 centimeters |
| Item Weight | 1.33 Kilograms |
| Item model number | T85D2 |
| Lock Type | Deadbolt |
| Manufacturer | eufy Security |
| Manufacturer | eufy Security |
| Material Type | Steel or brass alloy |
| Model Number | T85D2 |
| Product Dimensions | 17.5 x 7.01 x 3.3 cm; 1.33 kg |
| Recommended Uses For Product | Residential, for front doors or back doors |
| Style Name | Matter + WiFi + 8 AA batteries |
| UPC | 194644213916 |
| Unit Count | 1.0 Count |
C**.
Fácil instalación, fácil integración con HomeKit, buenas funcionalidades, me encantó el diseño y tiene buenos materiales.
S**R
After 4 months of use ...I have zero beef with this device. I'm still using the original batteries that I installed on day one. The app could be better but as far as manual usage of the fingerprint scanner and entering codes it works well. Unless it goes for bust in the next few months I'll give it five stars
D**N
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**S
eufy Security Smart Lock C34 – Keyless Entry Door Lock (Apple Home Ecosystem) I run a fairly large smart home setup with TP-Link Tapo switches, outlets, and smart lighting throughout my house. Adding smart locks was the next step to round out the system. In total I installed six of these locks. Three of them are the fingerprint models on the primary doors and three of the keypad-only versions are on the less-used doors. Pros: App notifications and control work well Integration with Alexa and routines is convenient The locks look good and feel solid when installed Setup through the app was straightforward Cons: Battery life is very short if notifications are enabled. With notifications on, batteries last less than a month. Turning notifications off improves battery life to around two months, but that removes one of the most useful features. The keypad can be slow to respond at times, which can be frustrating when entering codes. The locks are very sensitive to door alignment and friction in the latch/strike area. If the door is not pulled tight or aligned perfectly, the bolt sometimes won’t retract or extend properly. Because of this, you may need to push on the door while locking it to make sure it engages correctly. The app will notify you if the lock fails to secure, but that only helps if you keep notifications enabled—which brings you back to the battery issue. I really wanted to love these because they were intended to be the centerpiece of my smart home system. After about a year of use, however, they’ve been just enough of a headache that I’ve actually considered going back to traditional locks. At this point I’ve invested quite a bit since there are six doors using them, so replacing them isn’t a small decision. I had hoped firmware updates would improve reliability over time, but unfortunately I haven’t seen much improvement. Overall, they have some nice features, but the battery life and sensitivity to door alignment have made them less reliable than I expected.
J**C
IMPORTANT!! PLEASE READ. This product works fantastic with my Apple Home setup. I would expect it to work just as well with Alexa and Giggle. I use all three for different reasons. HOWEVER.....I have owned and used two of these locks for almost three months now. One of the locks is used frequently. I'd say I either manually enter the code or have Siri open and lock this one device at least ten times a day. The second device is locked and unlocked MAYBE once a day. Both devices have now needed a full battery change twice (in less than 3 months). I'm even using Energizer Ultimate Lithium batteries. Those things last forever in anything else I put them in. Also, both device's battery changes were needed at the exact same time, both times. We're talking 8 x AA batteries per device / month. I wish I owned Energizer stock. For extra info....I have a third lock in my house, not this one or this brand. It was installed at the same exact time these were and it's original batteries are sitting at 85%. I've had other brands installed in my house over the years and their batteries typically lasted at least 6-8 months. This device has a very obvious firmware issue (Yes, I've updated and its been up to date since date of install). You will spend more in batteries in 6 months than the lock costs itself.
Trustpilot
1 day ago
2 months ago