• 2K Wi-Fi Video Doorbell with Person Detection (Wired) - Black (Single)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
  • Lorex 2K Wi-Fi Video Doorbell (Wired, 32GB)
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Key Features

  • 2K Video Resolution (HDR)
  • 2-Way Talk
  • Color Night Vision
  • IP65 weatherproof Rated
  • -20°C to 50°C Operating Temperature
  • Compatible with the Lorex Classic App

Wired Smart Doorbell

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

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

SKU: B451AJDB-E

Color
This product is only available for purchase by contacting our team directly.
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Key Features

  • 2K Video Resolution (HDR)
  • 2-Way Talk
  • Color Night Vision
  • IP65 weatherproof Rated
  • -20°C to 50°C Operating Temperature
  • Compatible with the Lorex Classic App
 
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

SPECIFICATIONS

2K

RESOLUTION

More than 2× 1080p HD resolution

164°

FIELD OF VIEW

Ultra-wide diagonal viewing angle

32GB

MICRO SD

Maximum capacity 256GB microSD card

works with google assistant
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 microSD card, you will have ample storage and your video recordings remain safe and secure.

Remote Monitoring with Lorex Classic App
 

Detect

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

 

Record

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.

 

Ring

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

 
Lorex Fusion Ecosystem

Build your security the way you want with the Lorex

Fusion Collection
 

Easily grow your security by adding Lorex Fusion Wired and Wi-Fi Cameras.

All-in-One Security

Connect all of your devices to one recorder with secure local storage for enhanced privacy and protection.

24/7 Recording

Record continuously to your NVR’s local (and upgradeable) storage with no monthly fees.*

One App Access

Remotely monitor and control your Lorex devices from anywhere using the Lorex Classic app.

 

*To conserve battery life, Lorex Battery-Operated Doorbells and Cameras cannot record 24/7 continuously to the Fusion Recorder’s local hard drive.

 
 

Mounting Bracket Wedges Included

doorbell wedges

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

 
 

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
Network Connectivity 2.4/5Ghz 802.11b/g/n/ac
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

Mounting bracket

Horizontal bracket 15°

Vertical bracket 5°

Pre-inserted microSD Card

USB Cable

Anchors and screws (x2)

Wire caps (x3)

Pin

microSD card (pre-inserted)

Chime Kit

Wire harness

Backup cable

Extra wires (x2)

15/64” Drill bit

Doorbell Comparison Chart

B241AJD

1080p Wired Video Doorbell

B451AJD, B451AJDB

2K Wired Video Doorbell

B463AJD, B463AJDB

2K Battery Video Doorbell

B862AJD, B862AJDB

4K Wired Video Doorbell
Resolution 1080p / 2MP (1920 × 1080) 2K / 4MP (2560 × 1920) 2K / 4MP (2560 × 1920) 4K / 8MP (2160 × 3840)
Aspect Ratio 16:9 4:3 4:3 9:16
Color
Dark Grey
White, Black
White, Black
White, Black
Detection Person Person Person Person, Vehicle, Animal, Package
Power Options (Voltage) Wired (16-24VAC) Wired (16-24VAC) Built-in Battery, Wired (8-24VAC) Wired (16-24VAC)
Storage 32GB Included
(Upgradable to 256GB)		 32GB Included
(Upgradable to 256GB)		 32GB Included
(Upgradable to 256GB)		 32GB Included
(Upgradable to 256GB)
Network Connectivity 2.4GHz Wi-Fi 2.4GHz / 5GHz Wi-Fi* 2.4GHz / 5GHz Wi-Fi* 2.4GHz / 5GHz Wi-Fi*
Chime Kit Not Included Included Not Included Included
Lorex Compatibility Fusion,
ACCHM2 Wi-Fi Chimebox		 Fusion,
Lorex Smart Home Security Center,
ACCHM2 Wi-Fi Chimebox		 Fusion,
ACCHM2 Wi-Fi Chimebox		 Fusion,
ACCHM2 Wi-Fi Chimebox
Third-Party Compatibility Alexa, Google Assistant 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,
Quick & Custom Response		 2-Way Talk,
Quick & Custom Response
Night Vision IR / Color IR / Color IR / Color IR / Color
Operating Temperature -4°F / -20°C - 122°F / 50°C -4°F / -20°C - 122°F / 50°C 14°F to 122°F / -10°C to 50°C -4°F / -20°C - 122°F / 50°C

*Due to Industry Canada (IC) restrictions, your 5GHz Wi-Fi network may not be supported if you are located in Canada.

Product Support

Manuals & Downloads Apps & Software Support
Articles Support
Videos

Product Reviews

Overall rating: 4.5008054 / 5 from 621 reviews.

AI Generated Review Summary

The Lorex 2K Wi-Fi Video Doorbell is praised for its high-quality video, reliable notifications, and easy installation. Customers appreciate its intuitive app and clear picture, making it a popular choice for home security.

Summary topics

  • Cost: 7%
  • Features: 5%
  • App Usability: 6%
  • Notification Reliability: 4%
  • Installation Ease: 9%

Review topics: ["color","quality","value","difference","shipping","light","installation","issues","features","setup","instructions","looks","performance","sound","upgrade","coverage","replacement","connection","customer service","face","mount","design","service","price","hardware","battery","warranty","works","lens","power"].

Review highlights

  • "Good price, tremendous quality, easy installation and setup." — Harold B.
  • "Easy install, great updates and notifications, really good video." — Scott N.
  • "These no fees... and better Pic and video." — DANIEL W.

Reviews

"Device Storage Corrupted"

"Constantly sends warning that device storage is corrupted. I'm on my third sd card now, same problem. As soon as it hits about 32GB of stored video, "corrupted". First on a 256 sd card, now on my second 128 sd card. Also, this 2K doorbell uses 4 times as much sd space as my 4K driveway cam does. Something is not right. Not happy. Also goes offline randomly."

— Jim V. (1/5)

No two way talk and erratic performance

"Doorbell camera ( 2k wired/wifi) will not two way talk and has very erratic performance at best. I have replaced my router with the latest mesh system to help and it still has problems. I also purchased a new nvr just to use this doorbell I have over $700 into this doorbell and it is horrible !! I could have bought a blink and subscription for the next 10 years and been ahead cost wise Soooo disappointing and costly mistake in going this route !!"

— Greg C. (1/5)

Affordable doorbell cam without subscription fees.

"Overall I like it. It's an affordable doorbell camera without subscription fees that works with older mechanical chimes. Make sure you check that your transformer is at least 16v, but it's easy to upgrade if it's not. Good: 1. Wired doorbell that works with my old mechanical chime. 2. Supports big SD card so I don't have to pay for Cloud subscription. 3. Easy install if you have a flat surface (but I had lap siding). 4. Does great detecting people near the door and getting good video. 5. The app is good, but can't always connect. Challenges: 1. I have lap siding and there is no mounting bracket for that. I also wanted it angled down a little and to the side toward the driveway. They provide two angle brackets but you can't use both. Fortunately, I have the skills to design and 3D print a custom mounting block to fit my needs. 2. With a brand new Sandisk high speed card, it would randomly tell me the storage was corrupt, but mostly recorded fine. I re-formatted the card in my laptop and so far haven't had that problem again. 3. The app occasionally has a problem connecting for Live View even though my phone has a great WiFI connection and I'm close to the router and doorbell. Maybe the WiFi receiver in the doorbell isn't the greatest? 4. While it's great at recording people near the door, it does not detect someone walking through the yard or vehicles driving by so don't expect it to be an overall security camera. I don't know what the range is and I have it set to max sensitivity."

— John S. (4/5)

It's nice but constantly looses

"It's nice but constantly looses connection. I have to reconnect it on a monthly basis. My other Lorex cameras don't have that issue."

— Matthew B. (3/5)

Goes offline regularly. Have to

"Goes offline regularly. Have to take it down to reset it and then it takes multiple resets to reconnect if at all. Customer support doesn’t pick up the phone and troubleshooting guide is no help. I would recommend against purchasing these products."

— Matthew C. (1/5)

Product Failed Before Two Years, Terrible CS

"Purchased in June 2024, and it’s obvious why this product only comes with a one‑year warranty—it didn’t even survive two years before moisture leaked into the lens and completely ruined the video quality. The camera is now useless. Customer support was equally bad: no accountability, no discount on a replacement, and they couldn’t even be bothered to waive the $10 shipping fee. Overall, a cheaply made product backed by unhelpful customer service."

— Nick (1/5)

The advertised features of the

"The advertised features of the Lorex 2K wired video doorbell would have been a great configuration compared to most other brands. Installation was straightforward and the kit has parts to cover a variety of mounting situations. Unfortunately the Lorex Classic application software performs very poorly and has a terrible user interface. It even crashed during the basic setup sequence. Typical response times to connect to real-time video or playback of recorded images is very slow, making it almost unusable for answering a visitor before they give up and leave. Often the application initially displays "Uh Oh something went wrong" and prompts you to tap a retry button, leading to multiple failures before eventually producing a result. Mechanical chime actuation was a significant selling point, but it functions intermittently, often requiring two button pushes and then ceasing to respond until after a long delay. For the price point, the unit should at least properly replicate the function of a simple momentary contact switch, even if the video fails. The custom quick message recording function always causes the application to crash with a message that actually displays "Lorex Classic closed because this app has a bug. " If there's a known bug, why memorialize it with a message instead of releasing a functional application? Android OS gives warnings about excessive crashes of the application and recommends removal. Problems occur even under ideal unloaded high-speed Wi-Fi connections on both 2. 4 GHz and 5 GHz bands. The same problems occur whether operating from wired a. c. input or from a separate verified d. c. supply connected by the supplied microUSB cable. When it works, the WDR video quality is good and audio is usable. Nightlight and siren features are a nice extra. The unit gets very warm, which raises a concern for longevity. There's no indication Lorex intends to remedy its acknowledged defective software for this product. I regret the purchase and recommend not ordering this product until there is clear evidence that Lorex has cured its design defects and poor application software integration."

— Raymond W. (2/5)

Replacement doorbell

"I love my Lorex system, including the Video Doorbell. But I have to say that this doorbell was a replacement after my 1st doorbell camera had moisture on the inside of the lens. Because it was out of warranty, my only option was to replace it. Because I have an 8 camera system that has worked well for nearly 6 years, I just had to go back to what I had. Overall Lorex has great products, was just disappointed that the doorbell was not better designed to prevent moisture from getting on the inside of the lens."

— Customer G. (5/5)

Seems to work fine, install

"Seems to work fine, install was fairly easy"

— Mark B. (4/5)

I DO NOT RECOMMEND LOREX ANY LONGER

"I DO NOt RECOMMEND, this camere was purchased july 3 2023 and didint last til 03/03/2026 before the internal battery that drives the in house ringer went bad. then your interior door bell stops responding. I CALLED COMPLAINED AND WAS TOLD TOO BAD SO SAD BUY ANOTHER. SO REMEMBER THEY ONLY LAST ABOUT 3 YEARS AND ITS TRASH CAUSE YOU CANNOT REPLACE THE BATTERY SO EASY. I AM SO UNSATISFIED"

— GLEN H. (1/5)

Q&A

do you connect this door bell to a 110 volt system or just use the old wires from the old door bell 24 volt system?
Yes, you can connect the B451AJDB-E doorbell to a 12–24V DC transformer.
Will my 2K NVR recorder work with a 2K WIFI video Doorbell
For the situation you are describing, we kindly request the model number of the recorder. Alternatively, you may contact our Sales Team by phone at 1‑888‑425‑6739, and they will be able to provide proper guidance. In the meantime, here is a link listing all compatible devices for the B451AJDB‑E doorbell: https://www.lorex.com/pages/compatibility?dp=331
Can we add wireless cameras to this system?
The B451AJDB doorbell camera is Wi-Fi enabled, it can be connected to compatible recorders. For assistance in selecting the most suitable system, please contact our Sales Team at 1-888-425-6739.
can this doorbell be connected to the fusion N910A62 NVR?
Yes, the B451AJDB-E doorbell is fully compatible with the N910A62 NVR Fusion recorder.
Could someone easily steal this camera or does it have a secure way to mount it to make it theft resistant?
To remove the camera from the mounting bracket, you will need to insert the supplied pin into the hole at the bottom of the bracket until it reaches the inner buckle.
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