D871B Series - 4K DVR with Smart Motion Detection

Model Numbers: D871B Series

Record 4K video and customize your security experience with this innovative Digital Video Recorder (DVR) from Lorex. Featuring support for Smart Motion Detection, Face Detection, Face Recognition, Active Deterrence, Privacy Masking, and Virtual Fence (Perimeter Protection), this DVR will help you stay in the know and secure your property. It will also fit right in with your smart home thanks to its Smart Home compatibility and voice recognition that gives you hands-free accessibility to add extra convenience to your monitoring. The large security-grade hard drive also protects your privacy by keeping your data safe with you and off any costly cloud storage services.

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DVR - Face Detection

Face Detection is a smart feature of D861, D862, D871 Series DVR. When enabled, Face Detection can detect the faces of persons as they enter the camera's field of view.

DVR - Face Recognition

The D861, D862, and D871 series recorder is equipped with face recognition. You can configure the system to detect faces and respond with various actions.

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.

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.

DVR / NVR - How to Playback Recorded Videos on Your Computer

You can download recorded videos from your DVR or NVR to a USB flash drive and play them back on your computer. Depending on the file format of your video, you need the Lorex Player or the VL

DVR / NVR - How to Remove and Install a New Hard Disk 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 8TB or 10TB (varies per model).

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.

DVR / NVR - Which Hard Disk Drive (HDD) is Compatible with Lorex Recorders?

The following FAQ details which type of hard disc drive (HDD) is compatible with Lorex recorders.

How to Change or Reset Your Recorder's Password (Compatible with Lorex App)

This article offers guidance on how to change the password of your Lorex recorder for security purposes or reset it in case you have forgotten it.

Lorex Fusion: Connect Your Wi-Fi Cameras and Accessories (N841, N842, N843, N844, N861, D862, D871 Series)

The following article provides instructions for connecting your Lorex Fusion Collection Wi-Fi cameras and accessories to the Lorex App and to your Fusion recorder.

Popular Client Software and Mobile Apps

This page contains the updated list of all our current Client Software and Mobile Apps.

Technical Support: Frequently Asked Questions

We have curated these frequently asked questions (FAQs) to provide you with a quick and easy solution to technical issues regarding your Lorex product.