Details
Related Articles
Manuals & Downloads
Support Videos
Introducing eufy Solo Smart Lock D20

Introducing weatherproof security and convenience all in one! eufy’s Solo Smart Lock D20 is designed to allow you to unlock your door with an entry code or in the app, all while being able to control access through the eufy app application.
 

No Hidden Cost!

There is absolutely no hidden cost when it comes to Smart Lock Front Door with WiFi (Solo Smart Lock D20). It is a one-time purchase and does not require monthly subscriptions to use either the device or the eufy app.

Extreme Weather?  No Problem!

With an IPX3 weatherproof rating, Smart Lock is ready to protect homes in any location. It’s capable of withstanding temperatures ranging from -30°C/-22°F to 70°C/158°F as well as rainfall.

Bluetooth Unlock

Lock and unlock remotely as you approach via Bluetooth with the eufy app. Works up to 70 meters away for true hands-free entry.

Control From Anywhere: With its all-new WiFi connectivity, you can control Smart Lock from absolutely anywhere via the eufy app. No additional accessories required.

 

Smart Lock’s Got Your Back

When you’re in a hurry or your hands are full, it’s easy to forget about security. That’s why Smart Lock automatically locks behind you, so you can rest easy knowing your home is always secure.

Built to Last

Certified by BHMA to lock and unlock 250,000 times—you could leave your house twice a day for 340 years and Smart Lock would still be going strong.

 

Product Specifications

Identification

Part Number

T8501J11

Features

Warranty

36 months on Mechanical parts

18 months on non-mechanical parts

Fingerprint of users

100 (on one account)

Certification

BHMA Grade 2

Bluetooth

Yes

WiFi

2.4gHz

Compatible Door dimensions/Type

Door Frame/Material 

Wood. Steel doors are not recommended.

Crossbore diameter

2 1/8th” or 1 ½”

38mm or 54 mm

Backset(distance between center of crossbore hole and edge of door)

2 3/8th” or 2 3/4th” 

60mm or 70mm

Diameter of door hole

1” or 25mm

Door thickness

1 3/8th” ~ 2 1/8th” or 35mm~55mm

Location of handleset or bored dead latch

>150mm from crossbore hole. Please pay attention to the outer dimension

Privacy

Encryption Type

Bank Grade AES128 encryption

Battery

Battery Type

4 AA Batteries (included, non-rechargeable)

Battery Life

6 Months - 1 Year

Design

Weatherproof

Yes (IP63)

Operating Temperature

-30°C/-22°F to 70°C/158°

Storage

Local

Stores door opening and unlocking/locking events 

Connection

Wireless

Bluetooth and WiFi 





 

Functionality

Ways to unlock

  1. Physical Key (included)
  2. eufy App (bluetooth OR WiFi)
  3. Entry Code (must set code first on eufy app) 

Auto Lock

Yes, up to 3 minutes

Emergency Unlock

Yes

Scramble Passcode

Yes, up to 12 characters

Failed Attempt Lock

Yes, up to 5 consecutive attempts until the access code cannot be used

Smart Platforms

Alexa/GVA/Homekit

Alexa: Yes

GVA: Yes

Homekit: No

Other

What’s in the box

-Deadbolt

-Exterior assembly

-Spacer

-Interior Assembly

-Mounting Plate

-Strike Plate

-Strike Reinforcer

-Mounting Plate Screws

-Deadbolt Screws/Strike Screws

-Reinforcement Screws

-Interior Assembly Screws

-Batteries (4x AA)

-Keys 

 

If you have further questions regarding Solo Smart Lock D20, please contact us for assistance.

Introducing eufy Solo Smart Lock D20
Download
Applicable for those products :
Resolved
Unresolved
Copied
118 Results
Compatibility Between eufySecurity Devices
5082 views/3 likes/2025-08-01 15:16:45
Share Your eufySecurity Devices With Your Family
20520 views/4 likes/2025-04-07 18:27:23
Two-Step Verification for eufySecurity App
29898 views/10 likes/2025-04-07 18:27:11
How to Find Out if You Have 2.4 GHz or 5 GHz WiFi Network
12393 views/1 likes/2025-04-07 18:05:46
How to Change the Wi-Fi Details for eufySecurity Devices
12466 views/1 likes/2025-04-15 15:48:16
Alexa Setup Guide for eufySecurity Devices
84063 views/5 likes/2023-08-16 16:08:07
Sign up for A eufySecurity Account
10962 views/1 likes/2025-04-08 13:37:24
Using Google Assistant for eufySecurity Devices
3922 views/1 likes/2025-04-07 18:27:24
Update Firmware for eufySecurity Devices via App
20544 views/5 likes/2024-12-23 20:48:42
Using Amazon Alexa for eufySecurity Devices
5051 views/1 likes/2025-04-07 18:27:11
View More
Manuals & Downloads
‬⁡‌​⁢‬⁣‬‌⁢⁣‌⁣⁢⁢​⁤​⁣‬‬​‌​​⁣‌⁡‍‬​‬‍⁢⁤‍⁣​‍‌​‬⁢【T8010】【HomeBase 2】EU Declaration
Download
T8113S_EU Declaration of Conformity
Download
eufyCam_2C_Pro_Set_Manual_us
Download
RoboVac 30C_Manual_EN
Download
video_Doorbell_2K_(Wired)_Manual_us
Download
Motion_Sensor_manual_us
Download
RoboVac 35C/25C_Manual_EN
Download
720p_Video_Baby_Monitor_manual_us
Download
HomeVac S11 Go/Reach/Infinity_EN+ES_Manual
Download
eufyCam_2_Pro_Set_Manual_us
Download
Support Videos
How to Connect RoboVac to iOS Devices
eufy 3-in-1 E20: Unboxing and Quick Start Guide Video
How to Install eufy Security Video Doorbell (Wired)
How to set up eufy Security Video Doorbell (Battery-Powered)
How to Install eufy Security Floodlight Camera
eufy Security App Functions
RoboVac X8 Series:How to Connect iOS Devices
eufy 3-in-1 E20: How to Connect to Wi-Fi (iOS/Android)
eufy 3-in-1 E20: How to Control Your Device via the eufy Clean App
eufy Clean WetVac W31: Unboxing Video