Lorex C841CA Series Quick Start Manual

Package Contents

• 4K Ultra HD Bullet Security Camera

• Mounting Kit*

• BNC / Power Extension Cable*

• Power Adapter**

* Per camera in multi-camera packs.
** A multi-camera power adapter that provides power to multiple
cameras or individual power adapters may be provided depending on
product configuration.

A REGULATED UL / CSA APPROVED power supply is REQUIRED for use with this

camera (included). Use of a non-regulated, non-conforming power supply can

damage this product and voids the warranty.

ATTENTION:

Safety Precautions

• Read this guide carefully and keep it for future reference.

• Follow all instructions for safe use of the product and handle with
care.

• Use the camera within given temperature, humidity and voltage levels
noted in the camera’s specifications.

• Do not disassemble the camera.

• Do not point the camera directly towards the sun or a source of
intense light.

• Use only the supplied regulated power supply provided with the
product. Use of a non-regulated, non-conforming power supply can
damage the product and void the warranty.

• Periodic cleaning may be required. Use a damp cloth only. Do not use
any harsh, chemical-based cleaners.

• The supplied cable is rated for surface and in-wall mounting only.
Cables for floor-to-floor installations are sold separately (CMR type).
These and other cables are available at lorex.com.

Installation Tips

• Point the camera where there is the least amount of obstructions
(i.e., tree branches).

• Install the camera where vandals cannot easily reach.

• Secure cabling so that it is not exposed or easily cut.

• This camera is rated for outdoor use. Installation in a sheltered
location is recommended.

Resources

Need Help?

Visit us online for up-to-date software

and complete instruction manuals

1

2

3

4

Dimensions

2.8” / 71mm

Disclaimers

• For a full list of compatible recorders, visit lorex.com/compatibility.

• To ensure that you are viewing camera video in full 4K resolution (4K
monitor required), check the video output resolution of your recorder.
For full instructions, see your recorder’s documentation at lorex.com.

• Not intended for submersion in water. Installation in a sheltered
location recommended.

• This camera includes an Auto Mechanical IR Cut Filter. When the
camera changes between Day/Night viewing modes, an audible clicking
noise may be heard from the camera. This clicking is normal, and
indicates that the camera filter is working.

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6.2” / 158mm

4K Ultra HD Bullet Security Camera

Quick Start Guide

English Version 1.0

Copyright © 2019 Lorex Corporation
As our products are subject to continuous improvement, Lorex reserves the right
to modify product design, specifications and prices, without notice and without
incurring any obligation. E&OE. All rights reserved.

C841CA_QSG_EN_R1

C841CA SERIES

www.lorex.com

Installing the Camera

Test your camera prior to selecting a permanent mounting location by
temporarily connecting the camera and cable to your DVR.

Before Installing the Camera

• Decide whether to run the cables
through the wall / ceiling (drilling
required) or along the wall / ceiling.

• If you run the cables along the
wall / ceiling, you must run the
cable through the cable notch on the
base. This will keep the camera base
flush to the surface when mounted.

To install your camera:

1. Set the camera in the desired mounting position and mark
holes for screws through the camera base.

2. Drill the holes, then feed the cable through the mounting
surface or cable notch.

NOTE: Insert the included drywall anchors if you are

mounting the camera onto drywall.

3. Mount the camera stand to the mounting surface using
the provided screws. Make sure all screws are fastened
tightly.

4. Adjust the camera as shown below:

A B C

A. ROTATING THE ARM: Loosen the adjustment ring by turning it

counter-clockwise. Rotate the arm of the camera up to 360°, then
tighten the adjustment ring against the base.

B. BENDING THE ARM: Use a Phillips head screwdriver (not included)
to loosen the adjustment screw closest to the camera base. Bend the
arm of the camera up to 90°, then tighten the screw.

C. LEVELING THE CAMERA: Use the screwdriver to loosen the
adjustment screw furthest from the camera base. Rotate the camera
until it is level with the viewing area, then tighten the screw.

ATTENTION:

Cable Notch

Connecting the Camera

Male Power Female Power

Camera

Connect the BNC connector
to a video input on your DVR.

Connect the female power
head to the included power

Connect the male power head
and the BNC connector to the
camera.

Connecting the Cameras

Power Adapter Types

A multi-camera power adapter that provides power to multiple cameras
or individual power adapters may be provided, depending on product
configuration.

Individual Power Adapter* Multi-Camera Power Adapter*

* Images for representation only.

Connecting the Cameras

Setup Diagram

Camera

adapter.

BNC Video

Extension Cable

12V DC Power

HD DVR

DVR

Cable Extension Options

Extend the cable run for your camera depending on the cable type used.
Additional extension cables sold separately. See table below:

Option Model Number Cable Length

1

2

CB120URB

CB250URB

120ft (37m)

250ft (76m)

NOTES:

1. The extension cable must be a single stretch of cable between the DVR and
camera. You cannot connect multiple extension cables to each other.

2. Extending camera cable runs beyond the included cable length may require
you to connect the power supply directly to the camera rather than to the
extension cable.

3. Indicators that your cable run may be too long:

• Camera loses video when switching to night vision.

• Video is permanently black & white (even during day time).

• Video is unclear, soft, or distorted.

4. For more information on extension cables, visit lorex.com and search for the
model numbers of the cables above.

Troubleshooting

Problem Solution

Picture does not
appear to be 4K

No picture / signal

Picture is too bright • Ensure your camera isn’t pointed directly at a source

Picture is too dark • Check the brightness and contrast settings of the

Night vision is not
working

Picture is not clear • Check the camera lens for dirt, dust, spiderwebs.

Bright spot in video
when viewing camera
at night

Person and vehicle
detection is not
working.

• To ensure that you are viewing camera video in full
4K resolution (4K monitor required), check the video
output resolution of your DVR. For full instructions,
see your DVR’s documentation at lorex.com.

• The cameras are only compatible with certain Lorex
HD DVRs. For the full list of compatible recorders, visit

lorex.com/compatibility.

• Ensure your TV or monitor is on the correct input
channel. Common terms for input channels: INPUT, AV
CHANNEL, LINE1, LINE2, AUX.

• Ensure your DVR is properly connected to your TV or
monitor.

• Ensure connections are properly connected.

• Ensure the camera power supply is plugged in.

of light (e.g., sun or spot light).

• Check the brightness settings of the DVR and monitor.

• Move your camera to a different location.

DVR and monitor.

• The night vision activates when light levels drop. The
area may have too much light.

Clean the lens with a soft, clean cloth.

• Make sure that the cable run is within the limitations
specified in the section ‘Cable Extension Options’.

• Remove the vinyl film from the camera lens when your
installation is complete.

• Night vision reflects when pointing a camera through a
window. Move the camera to a different location.

• Support for person and vehicle detection is
deteremined by your recorder. See your recorder’s
documentation to confirm support for this feature.

5. Remove the vinyl film from the camera lens when your
installation is complete.

Power Adapter

C841CA_QSG_EN_R1