1. 4K (8MP) Analog HD cameras are required to take advantage of 4K recording.
2. Requires a high-speed internet connection and a router (not included) for remote access. A minimum upload speed of 5Mbps is required for the best video performance. Up to 3 devices may connect to the system at the same time. For the latest list of supported apps and devices, please visit: www.lorex.com/support
4. Compatible with select Lorex Analog HD cameras only. For a list of compatible cameras, please visit www.lorex.com/compatibility
5. Both firmware and software must be updated to latest version to ensure remote connectivity.
6. Person/Vehicle Advanced Motion Detection can be enabled only on channels 1-4. General motion detection will still be available on all remaining channels. Accuracy of Person/Vehicle Advanced Motion Detection will be influenced by multiple factors, such as the object's distance from the camera, the size of the object, and the height and angle of the camera.
7. Controlling certain features in your security system requires a compatible smart device. Availability and performance of certain features and services are smart device dependent and may not be available in all areas or networks. For compatibility, features, instructions visit: www.lorex.com/smarthome
8. HDMI output supports 4K HD for high definition multi-channel live or recorded video viewing. Image quality and resolution is dependent on the type of camera connected to the DVR, as well as TV/monitor resolution
Features

Enjoy the peace-of-mind that comes along with an easy-to-install 4K Ultra HD security monitoring system from Lorex. It features our exclusive 16-Channel D841 4K Ultra HD digital video recorder (DVR) and sixteen 4K Ultra HD dome security cameras. The cameras feature a durable weatherproof aluminum housing and both color night vision in low light settings and infrared night vision in total darkness, ensuring around-the-clock coverage.
4KA166D
SPECIFICATIONS
16
CHANNELS
4K DVR can support up to 16 cameras
16
CAMERAS
16× 4K (8MP) dome cameras
120FT
NIGHT VISION
Maximum night vision range
3TB
HARD DRIVE
Maximum capacity 1 × 8TB hard drive

What's Included?
- Capable of recording up to 4K (8MP) Ultra HD Resolution on all cameras1
- Digitally zoom in on distant objects for better clarity
- Quickly access footage and features with simple voice commands (Compatible with: Amazon Alexa and Google Assistant)7
- View live or recorded video directly on your TV with smart home compatibility (Compatible with: Chromecast)
- Reduce unnecessary alerts and false alarms with advanced motion detection8
- Get push notifications when motion from a person/vehicle is detected6 (Available on up to 4 channels)
- Use Smart Search to filter motion events for reviewing footage quickly and easily
- Local built-in security-grade hard drive ensures only you can access your footage
- Ample storage space with no monthly cloud fees
- Heavy-duty hard drive designed to handle the workload of 24/7 monitoring
Each D841A63B Includes:
- 4K (8MP) Ultra HD, ensuring clear and detailed footage, every time1
- See more with an 86° Field of View (horizontal)
- Experience enhanced nighttime clarity and better video evidence with Color Night Vision™2
- Up to 120ft (36m) IR night vision in low light and 82ft (25m) in total darkness3
- Weatherproof rated (IP66)4
- All-metal housing built to withstand harsh weather conditions
- Operates in temperatures as low as -22°F (-30°C) and high as 131°F (55°C)
Each C831CD Includes:
1. Compatible with select Lorex analog HD recorders. For a full list of compatible recorders visit: www.lorex.com/compatibility
2. Full color nighttime video typically switches to black & white IR night vision below 1 lux to ensure optimal low-light image quality.
3. Stated IR illumination range is based on ideal conditions in typical outdoor night time ambient lighting and in total darkness. Actual range and image clarity depend on the installation location, viewing area, and light reflection/absorption level of an object. In low light, the camera will switch to black and white.
4. Not intended for submersion in water. Installation in a sheltered area recommended.
All trademarks belong to their respective owners. No claim is made to the exclusive right to use the trademarks listed, other than the trademarks owned by Lorex Corporation. We reserve the right to change models, configurations or specifications without notice or liability. Product may not be exactly as shown. Images are simulated.
Apple, the Apple logo and AppleTV are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.
Google, Google Home, Google Play, Google Play logo, Google Assistant logo and Chromecast are trademarks of Google Inc.
Amazon, Alexa and all related logos are trademarks of Amazon.com, Inc. or its affiliates.