4K DVR with Advanced Motion Detection - D841 Series

Model Numbers: D841 Series

Sold From: 2020 - present

Whether you're upgrading an existing video recorder or thinking of purchasing a whole new Analog HD system, this latest 4K Ultra HD digital video recorder by Lorex meets all the demanding needs of modern-day security. Features such as 4K recording resolution produce visually accurate video footage with exceptional detail. Along with 4K recording, advanced person/vehicle detection, and smart home compatibility, this DVR combines active security with the convenience of hands-free voice control.

Works with Google Assistant

works with Amazon Alexa



Support Articles

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D Series DVRs: Audio recording

Describes how to set up Audio recording
Configuration and Setup

D Series DVRs: Backing up video recordings

Configuration and Setup

D Series DVRs: Changing the recorder’s output resolution

Configuration and Setup

D Series DVRs: Configuring hard drive overwrite

Configuration and Setup

D Series DVRs: Configuring recording quality

Configuration and Setup

D Series DVRs: Configuring smart motion detection

Configuration and Setup

D Series DVRs: Playing back recorded video

Configuration and Setup

D Series DVRs: Setting a recording schedule

Configuration and Setup

D Series DVRs: Setting up email alerts

Configuration and Setup

D Series DVRs: Smart search

Configuration and Setup

D841 Series: Enabling voice assistance

Configuration and Setup

DVR / NVR - How to format your USB flash drive on your recorder

To make sure you can transfer files to or from your recorder, it is essential that you first format your USB flash drive on the recorder before moving any file.
Firmware

DVR / NVR - How to manually upgrade the firmware of your recorder

If your recorder is connected to a network, it will automatically receive firmware updates.
Firmware

DVR / NVR - How to remove and install a new hard drive

The system comes with a pre-installed 3.5" SATA hard drive. You can replace the hard drive with one up to a maximum size of 10TB.
Cabling and Installation

DVR / NVR - How to reset the password of your recorder

If you forget the password of your recorder, you will have to call our Technical Support and request for a temporary password.
Lorex Support

DVR / NVR - How to restore your recorder’s display resolution to factory default

This troubleshooting guide will help you restore your recorder’s display output to factory default so that you can restore your monitor’s live view.
Display and Power

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