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Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB) - Open Box

Save $80.00 (35%)
B451AJDBC-F-ROpen Box

Safe & Secure

Apps are protected with end-to-end data encryption.


Risk Free

Return for any reason within 30 days of delivery.

bi secure payment

Flex Payments

Spread out payments with easy financing options.


No Monthly Fees

Local recording protects privacy and saves money.


2K Wired Video Doorbell

See who's at the door, greet guests with the nightlight, answer the door from anywhere, play pre-recorded messages when someone rings, and talk to those on the other side with Lorex's new 2K wired video doorbell.


B451AJD / B451AJDB




More than 2× 1080p HD resolution



Ultra-wide diagonal viewing angle



Maximum capacity 256GB microSD card

works with google assistant works with amazon alexa

Compatible With Lorex Smart Home Security Center

This device can be added to the LSHSC along with other indoor and outdoor Wi-Fi cameras, video doorbells, floodlight cameras, and alarm sensors.

2K Doorbell Main Features

With impressive 2K resolution you will have clear video quality.


See more with a 164° viewing angle and 4:3 aspect ratio showing you the full picture.


HDR automatically corrects exposure when lighting is not ideal.

Two-Way Talk

Communicate with Pre-Recorded Messages

Use 1 of 3 quick responses to greet visitors who ring your doorbell. You can even record your own custom message to add your personal touch or speak directly through the doorbell using 2-Way Talk.

Quick Response and Two-Way Talk

Shed Light on your Doorstep

With the nightlight feature, you can program the LED light to turn on at a selected time. For added security, the LED light can be activated when motion is detected to deter unwanted guests.

Night Vision

Color Night Vision

People coming towards your door will be always visible thanks to its Color Night Vision and low light capabilities.

Local microSD Storage

No Monthly Fees

Local storage means No Monthly Fees. With the included WD microSD card, you will have ample storage and your video recordings remain safe and secure.

Remote Monitoring with Lorex App


Receive a Lorex App notification message the moment someone enters the doorbell's customizable motion detection range.



Thanks to a pre-recording feature, the doorbell will automatically start recording 5 seconds before the event starts so you don't miss any action.



Lorex App will automatically send you a notification telling you that there is someone at the door.

Answer with Alexa

Answer your doorbell with Alexa™

Be notified when someone rings the doorbell, as well as answer it without using your phone. You can easily pull up the live feed on the video screen of your hub or use it with Firestick to view video on your TV. For more information about current smart home integrations, visit our Smart Home Guide.


Expand your system with the Fusion Collection

Fusion Collection Devices

Pair this video doorbell with additional wired and wireless products to enhance your Lorex security experience.*

Never miss a thing with 24/7 continuous recording when paired with the recorder.
For more information, please visit our Fusion Collection Guide.

*Sold separately

Local reliable storage you can count on

Western Digital microSD card

The WD Purple microSD card offers exceptional performance and reliability to meet high-definition video recording.

Mounting Bracket Wedges Included

doorbell wedges

Customize your 2K Video Doorbell installation to fit your needs with the two included mounting bracket wedges.


Doorbell Comparison Chart


2K Wired Video Doorbell


1080p Wired Video Doorbell


1080p Wired Video Doorbell

Resolution 2K / 4MP 1080p / 2MP 1080p / 2MP
White, Black
Dark Grey
Black, Silver
Detection Person Person Motion
Power Wired Wired Wired
Storage 32GB 32GB 16GB
Network Connectivity 2.4GHz / 5GHz Wi-Fi 2.4GHz Wi-Fi 2.4GHz Wi-Fi
Chime Yes (chime kit included) Not Included Yes (chime kit included)
Lorex Compatibility Fusion,
Lorex Smart Home Security Center,
ACCHM2 Wi-Fi Chimebox
ACCHM2 Wi-Fi Chimebox
Lorex Smart Home Security Center,
ACCHM2 Wi-Fi Chimebox
Third-Party Compatibility Alexa, Google Assistant Alexa, Google Assistant Alexa, Google Assistant
Communication (Audio) 2-Way Talk,
Quick & Custom Response
2-Way Talk,
Quick & Custom Response
2-Way Talk
Aspect Ratio 4:3 16:9 16:9
Night Vision IR / Color IR / Color IR
Operating Temperature -4°F / -20°C - 122°F / 50°C -4°F / -20°C - 122°F / 50°C -22°F / -30°C - 140°F / 60°C


Product Specifications

Max Video Resolution 2K (2560 × 1920)
Aspect Ratio 4:3
Video Modes 2K, 1080p (default), D1
Video Features HDR
Max Lens Field of View 164º diagonal
Nightlight / Warning Light Yes
Quick Responses Yes
Night Vision Night Vision, high powered Infrared
LEDs (850nm) with IR Cut Filter
Indoor/Outdoor Outdoor, IP65 rated
Digital Zoom 8x
Microphone Microphone with noise cancellation
Speaker/Siren Yes
Audio Full Duplex 2-Way audio
Operating Temperature -4°F to 122°F / -20°C to 50°C
Power Requirements 16V ~ 24V AC / 12 ~ 24V DC

What's Included?

B451AJ wall mount dimensions

Dimensions (WxDxH): 5.1" x 1.8" (130mm x 45mm)
Weight: 1.17lbs / 0.53kg

Package Contents:

2K Video Doorbell

Pre-inserted microSD Card

USB Cable

Electrical Wiring

Mounting Kit

Quick Start Guide

15° Horizontal Bracket

5° Vertical Bracket

  1. Impressive 2K Resolution for clear video quality.
  2. See more with the doorbell's 4:3 aspect ratio and 164° diagonal field-of-view.
  3. Get the best picture always with HDR imaging.
  4. Use pre-recorded messages or 2-way talk1 to greet visitors.
  5. Motion-activated LED warning light can be manually enabled or customized to only be triggered when a person detected.
  6. Deter unwanted guests with the remote-activated siren.
  7. Be aware of activity around your doorstep with built-in Person Detection feature.
  8. Receive notifications from the Lorex App™ app when motion is detection2.
  9. Local microSD storage, expandable up to 256GB.
  10. Adjust the viewing angle of your Video Doorbell with the included set of mounting bracket wedges.
  11. Pair with additional wired and wireless Fusion products to enhance your Lorex security experience.
  12. Be notified when someone rings the doorbell, as well as answer it without using your phone with Amazon Alexa™.
  13. Compatible with existing doorbell wiring (16V-24V) and traditional mechanical and electronic digital chimes.3

Product Support

Reviews and Q&A

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