Multiple ways to unlock
Open Smart Lock using your fingerprint, with your phone via the eufy Security app, or by using the keypad or key.
Your finger is the key
Smart Lock fingerprint door lock recognizes your fingerprint in just 0.3 seconds, and unlocks your door in 1 second—it’s faster than fumbling for your keys.
Control from anywhere
With its all-new Wi-Fi connectivity, you can control Smart Lock from absolutely anywhere via the eufy Security app.
Auto-lock for you
Even when you’re in a hurry, Smart Lock is ready to protect your home. A built-in sensor detects when your door is closed and locks it automatically behind you, every single time.
Built to last
With a durable zinc alloy and stainless steel frame, Smart Lock is certified by the American National Standards Institute to lock and unlock 250,000 times—enough to handle the comings and goings of a busy household for over 50 years.
All-weather protection
Smart Lock keyless entry door lock is ready to protect your home no matter where you live. With an IP65 weatherproof rating, it’s capable of withstanding prolonged rainfall as well as temperatures ranging from -30°C/-22°F to 70°C/158°F.
Easy to install
Install Smart deadbolt lock in just 15 minutes, all by yourself, using only a screwdriver—saving you money on calling a contractor.
Compatible with voice assistants
Conveniently unlock Smart Lock from the comfort of your home via the Google Assistant or Alexa. (Note: the Google Assistant and Alexa are not built into the device.)
BHMA grade 2 security certification
Certified by the American National Standards Institute to lock and unlock 250,000 times—that’s 67 years of use if you lock and unlock Smart Lock 10 times a day
Protecting your privacy
Stores your fingerprint and in-app data locally—rather than on the cloud—to keep your personal information safe and private.
Emergency unlocking
Use a portable charger to unlock your Smart Lock fingerprint lock when it’s out of battery power.
*Push notifications with thumbnail previews require thumbnail preview images to be temporarily stored in the cloud.
Manufacturer's Warranty - Parts
1 year
Auto Unlock
Yes
Number of Key Fobs Included
2
Wireless Connectivity
Wi-Fi
Lock/Unlock Mechanism
Fingerprint
Finish
Black
Remote Monitoring Capabilities
Yes
Manufacturer's Warranty - Labor
1 year
Color Category
Black
Operating System Compatibility
Apple iOS
Shareable Keys
No
Voice Assistant Built-in
Google Assistant
Color Finish
Black
Lock Type
Deadbolt
Minimum Operating Temperature
-22 degrees fahrenheit
Color
Black
App Compatible
Yes
Maximum Operating Temperature
158 degrees fahrenheit
Battery Type
Lithium
Unlock Notifications
Yes
Product Name
Smart Lock Wi-Fi Replacement Deadbolt with eufy App|Keypad|Biometric Access
Model Number
T8520J11
Brand
eufy Security
Rechargeable Battery
Yes
Low-Battery Indicator
Yes
Power Source
Battery-powered
Installation Type
Replacement
Works With
Google Assistant