Monoprice

Monoprice 138514 4K Bullet HD-Tvi Security Camera

2.1 (2 reviews)
4K

4K 8.3MP bullet security camera with Matrix IR 2.0 night vision up to 131 feet and IP67 weatherproof construction.

$193.01*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Monoprice 138514 4K Bullet HD-TVI Security Camera is built for users who need high-resolution surveillance without replacing their entire recording infrastructure. Capturing video at 8.3 megapixels, it delivers 4K detail that makes it easier to identify faces, license plates, and other critical details in playback. The 4-in-1 design supports TVI, CVI, AHD, and CVBS output formats, so it can connect to virtually any modern DVR system. The motorized varifocal lens covers a 2.7mm to 13.5mm range with remote pan, tilt, and rotation controls, providing flexible framing from wide-angle coverage to tighter telephoto views without requiring a technician on site.

For low-light and nighttime surveillance, the camera employs Monoprice's Matrix IR 2.0 technology, which distributes infrared illumination more evenly than traditional IR LEDs. This eliminates the overexposed hot spots and halo effects that plague many security cameras, resulting in clearer footage across the entire frame at distances up to 131 feet. Additional image processing features include digital noise reduction to clean up grainy low-light footage and backlight compensation for scenes with strong contrast. The IP67-rated housing protects the camera from dust, rain, and extreme temperatures, making it suitable for year-round outdoor deployment.

Key Features

The Matrix IR 2.0 feature provides superior illumination and imaging over more traditional IR illumination solutions. It can illuminate to distances up to 131 ft in 0 lux conditions with more uniform exposure, particularly at the edges of the image. Matrix IR eliminates overexposure and hot spots (halo or spotlight effects in an image), Reduces interference and video noise, with a more vivid image Overall. It is more energy efficient and has a longer lifespan with better heat dissipation than

Digital noise reduction (DNR): image noise can come from a variety of sources, but is most often associated with low light conditions, resulting in a "grainy" Image. This noise not only interferes with the ability to clearly distinguish individual image elements, but also increases the storage space required for any given image. The DNR circuitry uses a digital comb filter to eliminate video noise.

Back light compensation (BLC)

Quality at a fair price: Monoprice rugged design and rigid quality control standards deliver high quality products at fair prices.

Buy with confidence: Monoprice not only stands behind every product we sell with a 1 year replacement warranty, We offer a 30-day money back guarantee as well

Specifications

Brand
Monoprice
Model
138514
Resolution
8.3MP (4K)
Camera Type
4-in-1 (TVI/CVI/AHD/CVBS)
Lens
Motorized Varifocal 2.7–13.5mm
IR Range
131 ft (Matrix IR 2.0)
Weatherproof Rating
IP67
Lens Control
Remote Pan, Tilt, and Rotation
Warranty
1-Year Replacement, 30-Day Money Back

Pros & Cons

👍 Pros

  • 8.3MP 4K resolution delivers sharp, detailed surveillance footage
  • Motorized varifocal lens allows remote adjustment of focal length from 2.7mm to 13.5mm
  • Matrix IR 2.0 provides even night vision illumination up to 131 feet without hot spots
  • 4-in-1 format compatibility (TVI/CVI/AHD/CVBS) works with most existing DVR systems
  • IP67 rating ensures reliable performance in harsh outdoor weather conditions

👎 Cons

  • Requires a compatible DVR or recorder, as this is not a standalone IP camera
  • Bullet form factor is more visible and conspicuous than dome-style cameras
  • At 8.3MP resolution, storage requirements for continuous recording are substantial
  • The 27-pound package weight suggests a heavy, bulky unit that may need robust mounting hardware

Frequently Asked Questions

It operates as a 4-in-1 camera supporting TVI, CVI, AHD, and CVBS formats, allowing it to integrate with a wide range of DVR systems.
The Matrix IR 2.0 system provides clear illumination up to 131 feet (40 meters) in complete darkness (0 lux conditions).
Yes. It carries an IP67 waterproof rating, meaning it is fully protected against dust ingress and can withstand temporary submersion in water, making it well suited for outdoor use.
Yes. The motorized varifocal lens (2.7–13.5mm) supports remote pan, tilt, and rotation, allowing you to adjust the field of view without physically accessing the camera.
Monoprice includes a 1-year replacement warranty and a 30-day money-back guarantee.