Smart Door Lock Retrofits over Existing Deadbolt, WiFi Connected, Remote Access, Guest Management
Retrofits over your existing deadbolt for instant smart home upgrade
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WiFi connectivity control and monitor from anywhere in the world
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Retrofit design installs over existing deadbolt in minutes
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Guest access management create and delete temporary access codes
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Original key compatibility keep using your current keys as backup
Shop with Confidence
Not the perfect fit? 30-Day Returns per our Return Policy.
Specifications
- WiFi connectivity with smartphone app control
- Retrofits over existing deadbolt mechanism
- Compatible with original keys
- Guest access code management
- Remote lock/unlock capabilities
- Door status monitoring
Installation
Installs on the interior side of your existing deadbolt. No rewiring or complex setup required. Simply attach over your current lock mechanism and connect to your WiFi network through the companion app.
Features
- Remote access control from anywhere
- Temporary guest codes for visitors
- Real-time door status notifications
- Battery-powered operation
- Maintains existing key functionality
Shipping & Returns
Free Shipping on Most Orders Within the Continental U.S. (Excludes AK/HI). Total delivery 6 to 11 business days (handling 1 to 3 business days, transit 5 to 8 business days).
30 days return window; report any damage within 48 hours. For returns, the customer pays return shipping on change-of-mind returns; we cover it for items that arrive defective, damaged, or incorrect. Restocking fee: 25% on approved non-defective returns (waived for defective, damaged, or incorrect items and exchanges). Refunds are issued within 14 days after we receive and inspect the return.
Wifi Smart Lock Silver (Retrofits over Existing Deadbolt)
Wifi Smart Lock Silver (Retrofits over Existing Deadbolt) upgrades your existing deadbolt with advanced smart home access control and built-in Wi-Fi connectivity. Designed for convenient remote locking and unlocking, this smart lock attaches to the inside of your existing deadbolt while allowing you to continue using your original keys. Easily manage guest access, monitor door status, and control your lock from anywhere using the August app or compatible voice assistants.
Specifications
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Connectivity: Wi-Fi, Bluetooth
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Power Source: Battery Powered
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Battery Type: CR123
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Number of Batteries: 2
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Lock Type: Smart Deadbolt
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Electronic/Mechanical: Electronic
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Door Handing: Universal
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Door Thickness Compatibility: 7/8 in to 2-1/8 in
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Material: Metal
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Finish: Silver / Brushed Nickel
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Style: Modern
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ANSI Grade: ANSI Grade 1
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Smart Home Compatibility: Alexa, Apple HomeKit, Google Assistant, Samsung SmartThings, Siri, Control4, Homey, IFTTT, Logitech Harmony
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Hub Requirement: No Hub Required
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Faceplate Dimensions: 2.6 in H x 2.6 in W
Features
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Remote Lock Control: Lock and unlock your door remotely using the August app from virtually anywhere.
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Easy Installation: Attaches to the inside of your existing deadbolt while keeping your original keys.
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Built-In Wi-Fi: Connects directly to your network without requiring an additional bridge or hub.
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Virtual Guest Access: Send virtual guest keys to trusted friends, family members, or visitors.
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Door Activity Monitoring: Check lock status and monitor who is coming and going through the app.
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Automatic Relocking: Includes auto relock functionality with delay timer settings for added convenience.
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Voice Assistant Support: Compatible with major smart home platforms and voice assistants for hands-free control.
Warranty
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Manufacturer Warranty: 1 Year
Free Shipping
Fast & free
30-Day Returns
30-Day Returns
Built to Last
Premium build
Quick Setup
10 min install
Instant Remote Control Access
Lock status at your fingertips
Guest Code Convenience
Temporary access made simple
Original Key Compatibility
Keep your backup method
4.8/5
Average Rating
95%
Easy Install
24/7
Remote Access
30-Day
Returns
Effortless Smart Home Security
Transform any door into a connected entry point
Remote Control
Lock and unlock from anywhere with WiFi connectivity and smartphone app integration
Guest Management
Create temporary access codes for visitors, cleaners, or deliveries with time restrictions
Quick Installation
Retrofit design installs over existing deadbolt in minutes without rewiring or modification
Backup Access
Continue using your original keys while enjoying smart lock convenience and security
Status Alerts
Receive real-time notifications when your door is locked, unlocked, or left open
Enhanced Security
Monitor and control access remotely with advanced encryption and secure WiFi protocols
From Vulnerable to Secure
Transform your home security with intelligent access control
BEFORE
Traditional Lock Limits
- Wondering if you remembered to lock the door after leaving
- Hiding spare keys in obvious places for family or guests
- No way to monitor who enters or leaves your home
AFTER
Complete Peace of Mind
- Check and control your lock status from anywhere in the world
- Grant secure temporary access codes without physical key sharing
- Receive instant notifications of all entry and exit activity
87% of users report feeling more secure about their home access
Based on customer survey
Setup in Three Simple Steps
From traditional lock to smart security in minutes
Attach to Existing Lock
Mount the smart lock mechanism over your current interior deadbolt without removing existing hardware
Connect to WiFi
Download the companion app and connect your lock to your home WiFi network for remote access
Control Remotely
Lock, unlock, and manage guest access from anywhere using your smartphone or tablet
See Why They Switched
Smart locks engineered for real-world reliability
| Feature |
Best Choice
Smart Door Lock Retrofits over Existing Deadbolt, WiFi Connected, Remote Access, Guest Management
|
Basic Smart Locks
|
|---|---|---|
| Retrofit Design | ||
| WiFi Connectivity | Bluetooth only | |
| Original Key Backup | ||
| Guest Code Management | Limited | |
| Remote Access |
Everything You Need to Know
Smart lock questions answered with confidence
Our retrofit design works with most standard deadbolts. The lock attaches to the interior side without modifying your existing hardware.
You can always use your original keys as backup. The lock also stores access codes locally for continued operation during WiFi outages.
Battery life varies by usage but typically lasts 6-12 months. You'll receive low battery notifications through the app.
Yes, create unlimited guest codes with custom time restrictions and access schedules through the companion app.
Most customers complete installation in under 15 minutes using basic tools. No rewiring or locksmith required.
Try with Confidence
30-Day Returns per our Return Policy if the smart lock doesn't meet your expectations.
Complete Your Smart Home
