Smart Doorbells & Locks
smart doorbells & locks — pre-owned
Browse 2,567 smart doorbells & locks — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
eufy E340 Security Video Doorbell 2K HD Dual Cameras with Delivery Guard |Refurb
Find and enable the “eufy Security” skill. Enter your eufy account login details on the Link Account page. Does Video Doorbell E340 support 5 GHz Wi-Fi?. How do I link Alexa and Video Doorbell E340?.
You save $70.00
eufy FamiLock S3 Smart Lock Palm Vein Recognition Keyless Entry Door Lock Wi-Fi
Which eufy devices and systems are eufy FamiLock S3 compatible with?. What kind of doors are eufy FamiLock S3 compatible with?. Compatible with most standard doors, door thickness:35-55 mm. It supports the Matter protocol.
You save $140.00
eufy E330 Smart Lock+ Chime Touch &Wi-Fi Fingerprint Keyless Door Lock Deadbolt
Recognizing your fingerprint in less than 0.4 seconds, the video doorbell opens your door easily and efficiently. You can also unlock the door with the eufy Security app, Alexa or Google Voice Assistant, built-in keypad or the included keys.
You save $160.00
eufy FamiLock S3 Max Smart Lock Keyless Entry Door Lock Palm Vein Recognition
What kind of doors are eufy FamiLock S3 Max compatible with?. Compatible with most standard doors, door thickness:35-55 mm. Palm Vein Unlocking: Advanced Security with 99.9% Accuracy. Achieve recognition in just 0.6 seconds with cutting-edge, forgery-proof palm vein recognition.
You save $122.00
2x Genuine Rechargeable Battery V4 Ring Video DoorBell 2, 3 4 Quick Release Nice
For Ring Video Doorbell 2. for Ring Video Doorbell 3. for Ring Video Doorbell 3 Plus. for Ring Video Doorbell 4. ◆Mondel No.: V4. ◆Compatible With Battery Model: V4, 5AT3S3, 5F53E9. for Ring Stick Up Cam (all generations).
eufy E340 Wireless Video Doorbell Security Dual Camera with Extra Battery|Refurb
Plus, enjoy the convenience of storing your data locally without any subscription fees. Installation and removal are easy, and with two batteries, you can ensure uninterrupted operation throughout the year.
You save $104.00
eufy Video Doorbell Camera C31 2K FHD Security Phone Door Ring Intercom |Refurb
Seamlessly integrate your doorbell with various devices. Note: The Video Call is currently only supported for Solo use. The HB3 version that supports Video Call is expected to be released in late November.
You save $50.00
eufy Wi-Fi Wireless Video Doorbell C30 2K Security Camera Smart Doorbell
Enjoy crystal-clear, detailed visuals of who's at your door with 2K FHD clarity, even at night. With a 16:9 expanded view, see a wider picture of your entire front door area. 1 x C30 Video Doorbell.
You save $106.00
Google Nest Doorbell (Battery) - Snow - Unit & Mount ONLY - Read Description
ThisGoogle Nest Doorbell (Battery) is inUsed Condition. ✓ Included: Doorbell Unit + Original Mounting Plate. The item showsvisible signs of wear from previous use, such as minor scratches or scuffs on the body.
eufy Security Smart Lock C30 Keyless Entry Door Lock Deadbolt Auto-Lock |Refurb
It's not compatible with these services yet. Smart Lock: Easily open your door using a physical key, voice commands with Alexa/Google Assistant or a physical button. The 15-minute DIY installation requires no drilling.
You save $34.00
eufy Smart Lock C33 Wi-Fi Fingerprint Keyless Entry Door Lock with Handle|Refurb
It's not compatible with these services yet. The lock remains operational throughout the year, ensuring continuous protection. This lock only supports the encrypted NFC cards officially provided by eufy.
You save $76.40
eufy Video Doorbell Dual Cameras E340 With Chime 2K Full HD Color Night |Refurb
This combination ensures comprehensive coverage and enhances security. 2K Full HD Clarity: Experience the difference with 2K clarity. Color Night Vision for a Clear View: Introducing the industry’s first dual-light system, paired with an advanced light-capturing and processing algorithm.
You save $110.00
eufy S330 Video Smart Lock Wi-Fi Camera Doorbell Fingerprint Keyless Door Lock
How to unlock Video Smart Lock S330 when the battery dies?. Does the lock still work with a key if out of power?. What kind of door is Video Smart Lock S330 compatible with?. What's the difference between Video Smart Lock S330 and E330?.
You save $180.00
Aqara Video Doorbell G4 Gray - Used - Good Condition
The Aqara Video Apple HomeKit Doorbell G4 in Gray is a sleek and modern rectangular-shaped device that is powered by a cordless/battery source. It features a 160-degree view and is compatible with Google Home for added convenience. This video doorbell includes face recognition features and is suitable for home use. Made of plastic with a matte finish, this Aqara G4 model offers wireless connectivity and operates on 6 batteries for reliable power. Ideal for enhancing security and adding a touch of technology to your home entryway.pple
DoorBird D201/D205 Video Doorbell System Stainless Steel. Free Shipping
I have a D201/D205 flush-mount stainless steel Doorbird Intercom system with back box housing, designed to be installed on a gate for remote access. Includes unit, PoE female adapter, and QR code for setup. Item does show use, but was removed in **working** condition from my home. The bubble IR sensor is broken, but the unit does still work fine. I had it connected via PoE, but you can connect via Wifi as well. Free shipping to continental 48 states. Will not ship internationally or to Alaska / Hawaii.
READ DESCRIPTION!!! AOSU Video Doorbell Ultra Wi-Fi Battery Alexa Google Home
eufy Security Smart Lock C220 Fingerprint Keyless Entry Door Lock Built-in Wi-Fi
Easy setup. Self-learning AI: Fingerprint door lock recognition gets more precise with every touch, so you don't have to try agian and again to get in. 【6 Ways to Unlock】Unlock with a touch for less than 1s with fingerprint lock.
You save $90.00
eufy FamiLock E34 Smart Lock Palm Vein Recognition Keyless Entry Door Lock Wi-Fi
What kind of doors is eufy FamiLock compatible with?. It's compatible with most standard doors (35-55 mm thick). Palm Vein Unlocking: Unlock with cutting-edge security, featuring 99.9% accuracy and ultra-fast recognition in just 0.6 seconds.
You save $170.00
eufy Dual Camera Smart Video Doorbell + Chime 2K HDR Security Cam work w/ Alexa
Eufy Security Video Doorbell Dual (Wired). Enable the eufy Security skill on your Alexa App. Link the eufy Security account to Alexa. Video Doorbell Dual (Wired): L5.4 x W2.0 x D1.1 in (L13.8 x W5.0 x D2.7 cm).
You save $100.00
eufy Smart Lock E31 Fingerprint Door Lock with Apple Home Ecosystem Auto Lock
This is a necessary condition for all matter devices to integrate with these platforms. A:Yes, this smart lock is compatible Matter over thread. Backset: 2 3/8 in or 2 3/4 in. A hole: 1 in. Door thickness: 1 3/8 in - 2 1/6 in.
You save $90.00
Blink Video Doorbell | TwoWay Audio | HD Video
The Blink Video Doorbell is a modern and sleek device that features two-way audio, HD video, and a range of useful features such as night vision and motion activation. It is designed for home use and is compatible with Amazon Alexa for added convenience. This wireless doorbell comes in a sleek black color and includes two batteries for easy installation. With its matte finish and round button shape, the Blink Video Doorbell is not only practical but also stylish, making it a great addition to any home.
You save $1.01
2x Ring Rechargeable Battery V4 Ring Video DoorBell 2 3 4 Quick Release 5AT3S3
Model Number: 5AT3S3. Compatible with the following devices:Ring Video Doorbell 2. Ring Video Doorbell 3. Ring Video Doorbell 3 Plus. Ring Video Doorbell 4. Ring Battery Doorbell Plus. Ring Battery Doorbell Pro.
eufy Wireless Video Doorbell 2K Security Cam Intercom 16GB Local Storage|Refurb
2.5x the Clarity: The built-in Sony 2K sensor and professional-grade lens allow you to view activity in picture-perfect resolution. On top of the high quality, we also stand behind our products to provide greatservice.
You save $104.00
eufy Security Wireless Video Doorbell 2K Dual Camera Dual Motion Detect |Refurb
Greet Guests From Anywhere. See Detailed 2K HD. Know with certainty who's at your door with 2K HD. 2K with HDR With accurate Dual Motion Detection, false alarms are reduced by 95%. Dual Motion Detection.
You save $150.00
eufy Smart Lock C220 Fingerprint Keyless Entry Door Lock Built-in Wi-Fi Deadbolt
Easy setup. Self-learning AI: Fingerprint door lock recognition gets more precise with every touch, so you don't have to try agian and again to get in. 【6 Ways to Unlock】Unlock with a touch for less than 1s with fingerprint lock.
You save $80.00
Google Nest Hello Video Doorbell (Wired) Model NC5100US - Tested – Works Great
Google Nest Hello Video Doorbell (Wired) - Model NC5100US. Model: NC5100US (Nest Hello). 1x Google Nest Hello Video Doorbell (NC5100US). Smart Wi-Fi Video Doorbell | HDR Video | Night Vision | 24/7 Streaming.
You save $4.60
Ecobee Smart Wired Doorbell Camera
The Ecobee Smart Wired Doorbell Camera is an innovative home improvement product that combines a sleek design with advanced features. This oval-shaped camera, powered by hardwired electricity, offers night vision capabilities, built-in speakers, and motion activation for enhanced security. With smart home compatibility with Apple HomeKit and Amazon Alexa, this black doorbell camera also provides Bluetooth and Wi-Fi connectivity for easy monitoring and control. Perfect for adding an extra layer of convenience and protection to your home.
eufy Security Video Smart Lock E330 3-in-1 2K Camera+Doorbell+Door Lock |Refurb
How to unlock Video Smart Lock E330 when the battery dies?. Does the lock still work with a key if out of power?. What kind of door is Video Smart Lock E330 compatible with?. What's the difference between Video Smart Lock S330 and E330?.
You save $130.00
Yale Assure Lock 2 Touch Keypad Biometric Satin Nickel Bluetooth Wi-Fi *Keyed*
Ring Wired Doorbell Elite White PoE Smart Video Doorbell Flush Mount Used
Professional-grade model designed for flush-mount installation and Power over Ethernet (PoE) operation. Power over Ethernet (PoE) connectivity. Constant power and stable wired connection. Two-way audio communication.
SwitchBot 2K Quad HD Smart Video Doorbell w/ 4.3" IPS Portable Display
Featuring crystal-clear 2K Quad HD resolution, it ensures you see every detail at your doorstep.
You save $16.50
Kwikset HomeConnect 918 Z-Wave Smart Lock Touchscreen Satin Nickel
Kwikset HomeConnect 918 smart lock with touchscreen keypad in satin nickel. Z-Wave enabled with long-range capability for reliable connectivity. Works with Ring Alarm and Samsung SmartThings hub (hub not included). Touchscreen PIN entry with 13-digit capacity Z-Wave connectivity for remote access and automation Long-range enabled for extended coverage Compatible with Ring Alarm and SmartThings systems Satin nickel finish, contemporary styling Deadbolt with manual key override Uses AA batteries (not included) Open-box, used condition. Fully functional and complete. Original retail $213. No returns, sold as-is.
eufy Security Smart Lock 5-in-1 Keyless Entry Door Lock Built-in WiFi Deadbolt
Avoid separate bridges with complex installation. It works with eufy doorbell. Easy setup. No difference between C210 and E110. 5 Ways to Unlock: Open your smart lock via the eufy Security app, using the keypad or physical key, from Apple Watch, or use your voice with Alexa/Google Voice Assistant.
You save $34.00
eufy Smart Lock E30 Fingerprint Door Lock Apple Home Ecosystem Auto Lock WiFi
This is a necessary condition for all matter devices to integrate with these platforms. A:Yes, this smart lock is compatible Matter over thread. Backset: 2 3/8 in or 2 3/4 in. A hole: 1 in. Door thickness: 1 3/8 in - 2 1/6 in.
You save $90.00
eufy Security Add-on Video Doorbell Dual Camera 2K Dual Motion Detection,Refurb
Greet Guests From Anywhere. See Detailed 2K HD. Know with certainty who's at your door with 2K HD. With accurate Dual Motion Detection, false alarms are reduced by 95%. Get Accurate Alerts with Dual Detection.
You save $130.00
eufy Dual Camera Smart Video Doorbell w/ Chime 2K HDR Security Cam Local Storage
Eufy Security Video Doorbell Dual (Wired). Enable the eufy Security skill on your Alexa App. Link the eufy Security account to Alexa. Video Doorbell Dual (Wired): L5.4 x W2.0 x D1.1 in (L13.8 x W5.0 x D2.7 cm).
You save $100.00
eufy Video Doorbell C31 Rechargeable Battery Live Video Call 24/7 Recording
Get 24/7 Protection with Hardwire Power For uninterrupted security, hardwire the doorbell to your existing doorbell wiring. Powered How You Like with Dual Power Options Enjoy versatile installation with dual power options.
You save $63.50
Google Nest Doorbell 2nd Generation Wired G28DR (DOORBELL ONLY) Gray
You save $7.19
TMEZON Smart Fingerprint Door Lock Biometric Door Lock with Handle Bluetooth APP
The door lock supports to add 50+ fingerprints, 100 pcs IC cards. Let’s make your life more convenient and secure without keys. [Voice Guide Easy Installation]: The door knob lock is designed to fit most US standard left handed and right handed doors, which can be easily installed with no drilling.
Ring Wired Doorbell Plus (Video Doorbell Pro) Video Camera 1080p HD Wifi Cam
The installation kit, user's manual and power kit are not included.