1080p HD Security System with 4K DVR, One 25


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MPX851DZW home security system

Secure your property with this web-exclusive CCTV security system from Lorex. This system features our first-class 4K Ultra HD D841 Digital Video Recorder (DVR), five 1080p weatherproof dome security cameras, and a 1080p pan-tilt-zoom (PTZ) security camera. It's a CCTV security system with all the features you would expect to find in a more extensive commercial system. This versatile security bundle from Lorex brings HD quality video, and provides ample coverage with its five bullet security cameras and one PTZ.





4K DVR can support up to 8 cameras



5 × dome and 1 × PTZ 1080p security cameras



Maximum night vision



Maximum capacity 1 × 8TB hard drive

Real-time 1080p HD security camera viewing and recording

Crystal clear HD 1080p security cameras

Six 1080p HD security cameras comprise this exclusive security system from Lorex. Don’t miss a thing with smooth real-time 30 frames-per-second (FPS) on-screen movement.

PTZ security camera

Versatile PTZ lens

Your PTZ security camera has the ability to move its lens in virtually any direction, as well as being able to zoom in on objects in the distance. This PTZ camera features full 360° panning rotation, a -15° ~ 90° tilt ability, and an incredible 25× optical zoom lens.

Do not fear the dark with 1080p HD night vision security cameras from Lorex

See through the dark with outstanding night vision

The dome cameras included here contain cutting edge infrared (IR) LEDs that make it possible to see clearly through the dark up to 130ft / 40m in ambient lighting and up to 90ft / 28m away in total darkness. ClearNight imaging technology assists with low light operation and recording efficiency. SmartIR functionality helps with close up recognition, so you can be confident that your security cameras are watching even when you cannot.

See in color - even at night

The PTZ camera includes high powered infrared LEDs that can see up to 300ft at night with the help of ambient lighting. If there is plenty of ambient light, these cameras will automatically utilize our revolutionary Color Night Vision™ (CNV) technology. This important feature will add an additional level of visual information that can help identify people or objects and increase contrast for easier detection and recognition.

1080p metal PTZ IP camera from Lorex

Built for freezing climates

Both types of cameras included in this system can withstand extreme temperatures and feature an IP66 weatherproof rating. The PTZ security camera, in fact, can withstand freezing temperatures as low as -40°F / -40°C.



Heat Rating

140°F | 60°C

Heat Rating

Cold Rating

-22°F | -30°C

Cold Rating



Heat Rating

158°F | 70°C

Heat Rating

Cold Rating

-40°F | -40°C

Cold Rating

Easy Analog HD security camera installation

Single cable camera connection

Each analog security camera comes with a siamese BNC cable that provides video transmission and power to the camera. This cable can be run through walls to give you the flexibility to install the camera where you need it most. A wired video / power connectivity means constant connection to your cameras, so your recording never misses a beat.


Advanced motion detection

Be aware whenever motion is detected on your property with advanced motion detection. This system features person/vehicle detection on up to 4 channels which helps reduce unnecessary alerts and false alarms from moving branches or animals. Important motion events that are recorded can easily be found using the Smart Search feature, which organizes events by type (e.g. person/vehicle motion vs. general motion, etc.).

security system with motion detection
lorex home remote viewing

Remote viewing from your mobile with Lorex Home

This system is designed for use with our innovative, hassle-free Lorex Home™ app. With Lorex Home, you can quickly and easily view your security system remotely through your smartphone or tablet. You can also program the app to send you motion-activated push notifications straight to your phone to keep you connected to your property at all times. Simply download the free app, scan the QR code on the DVR and your cameras will appear for you to monitor (or review footage).

Works With

works with Apple iPhone
Apple iPhone
works with Apple iPad
Apple iPad
works with Android phones
Android Phone
works with android tablets
Android Tablet
works with AppleTV
Apple TV
iphone icon
Apple iPhone
ipad icon
Apple iPad
android phone icon
Android Phone
android tablet icon
Android Tablet
Apple TV
smart home security camera system google home

Smart home compatibility

Get faster access to your security system with hands-free voice control. This security camera system is compatible with Amazon Alexa™, Google Assistant™, as well as Apple TV* and Chromecast™. By using simple voice commands, you can activate camera features and access live or recorded footage directly on your smart TV, and more. For more information about current smart home integrations, visit our Smart Home Guide.

*Requires Gen 4 or newer Apple TV with support for APP Store

apple TV lorex

View your system through Apple TV

Watch your Lorex system in new ways. Don't have an option of hooking up your Lorex recorder directly to your TV? No problem. Simply make sure your Lorex recorder is on the same network as your Apple TV™ (Gen 4 or newer) and watch your Lorex recorder on your TV through the Lorex Home Apple TV App.

24/7 heavy-duty professional HDD for security systems

Reliable security grade hard drive

The DVR in this system is capable of working 24/7 without a break. Thankfully, so is the 2TB hard drive within it. Lorex uses security certified hard drives that are manufactured specifically to meet the high workload demands of continuous security monitoring. This means that you can rely on this professional grade hard drive to safely store weeks (or even months) of security footage. It is also possible to manually upgrade the hard drive within the DVR to a hard drive up to 8TB in size.

standalone without internet

With or without the internet

This security camera systems can be used without being connected to the internet. This means that your data can only be accessed directly from your DVR. However, an internet connection is required to enable remote viewing, motion push notifications, and to download the latest firmware updates.

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