SKU: 29919633316

DAHUA MHVR8004-GFWI 4 Channels H.265 2 SD Mobile Video Recorder

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Description

DAHUA MHVR8004-GFWI 4 Channels H.265 2 SD Mobile Video RecorderMHVR8004 GFWI 4 Channels H. 265 2 SD Mobile Video Recorder > Support HDCVI AHD TVI IP video input > Support H. 265 smart H. 265 video compression > Support 4 channels 1080P view > Support 2 SD cards > Support face detection, multiple driving behavior detection, including smoking, calling, fatigue driving, and warning of cars hit > Adopt aviation connectors Product Data System Main Processor Embedded microprocessor Operating System Embedded LINUX Audio

MHVR8004-GFWI

4 Channels H.265 2 SD Mobile Video Recorder

> Support HDCVI/AHD/TVI/IP video input
> Support H.265/smart H.265 video compression
> Support 4 channels 1080P view
> Support 2 SD cards
> Support face detection, multiple driving behavior detection, including smoking, calling, fatigue driving, and warning of cars hit
> Adopt aviation connectors

Product Data

System

Main Processor

Embedded microprocessor

Operating System

Embedded LINUX

Audio

Audio Compression

G711A, G711U, G726, PCM

Audio Output

1 channel

Audio Sampling

8KHz, 16 bit

Image

Image Compression

H.265+/H.265/H.264+/H.264

Resolution

1080p (1920×1080) for all channels

Video

Video Input

2 channels of digital video signal input ; 2 channels of HDCVI analog video signal input (DSM/ADAS)

Video Output

One channel of CVBS output through EXTEND port

Video Frame Rate

PAL: 1fps–25fps
NTSC: 1fps–30fps

Multi-screen Display

1 window, 4 windows, 6 windows

Tour

Timed auto control, dynamic surveillance and alarm.

OSD

Channel, time, license plate, GPS

Color

Set tone, brightness, contrast, saturation and gains for each channel's video image.

Alarm

Alarm Input

4 channels

Alarm Output

2 channels,1 relay out, 1 Controllable 12V 0.75A out

Linkage

Snapshot, tour, recording, buzzing and email.

Hard Disk

Quantity & Storage Space

2 SD cards, each with max storage capacity up to 512G.

Function

Recording Priority

Manual recording > alarm recording > motion detection recording > Timed recording

Recording Resolution

1080P for all channels

Recording Lasting Time

1min–60 min (default: 60 min), pre-record: 1 sec–30 sec, post-record: 10 sec–300 sec

HDD full

Stop Record;Overwrite

Recording Searching

Time /Date, Alarm, MD and Exact Search (accurate to second)

Recording Playback Speed

Several playback rates of slow playback or fast playback; playing video backwards; manual single frame playback

Recording Playback Switching

When playing a recording, with one click, switch to recording in another channel whose play time will the same one.

Playback

1 channel

Digital Zoom

When playing recording in a full screen, select a region on the screen to enlarge it.

Motion Detection

396 motion detection regions for each channel; different sensitivity levels selectable for a region.

Video Loss

Yes

Vehicle Event Detection

Rolling over and hitting detection

Storage Capacity Extension

Extends storage capacity by USB flash drive or mobile hard disk.

User Management

Management of users of different roles

User Password Security

Yes

Program Upgrade

Upgrade by web, MHVR client or other tools; by USB flash drive

Port

SD Card

2, with max 512G storage capacity

USB Port

2, USB 2.0

Network Port

1, RJ45 10M/100M self-adaptive Ethernet port

RS–485

1

RS–232

2

CAN

1

CVBS

1, used together with special mobile display

Wi-Fi

Optional

3G/4G

Optional

GPS

Optional

AI

Face Comparision

Max 30,000 face images, 20 face databases

Driver Status Monitoring

DSM: Smoking, calling, yawning, looking around unfocused, being absent
ADAS: Warning of cars hit; detection of lane departure

Performance

Support max 2 intelligent rules for channels at the same time

Others

Power Supply

6V DC–36V DC

Power Consumption

≤12W (only for MHVR and without any peripheral)

Operating Temperature

-30°C to +70°C; 10%–90%

Dimension

138mm×160mm×49mm

Gross Weight (Package Box Contained)

1.63kg

Certifications

CE

FCC

EN50155

ISO7637-2

ISO16750

Yes

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 29919633316

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4.5 ★★★★★
Based on 30 reviews
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Product Reviews
M
Verified Purchase
Megan R Wesby
Carnegie, US
★★★★★ 4
Good budget-friendly option
Color: Black, Size: Pack of 1, Color: Black, Size: Pack of 1
The chair arrived 4 days early and was easy to put together by following the instructions carefully. It feels sturdy and comfortable. It does support the lumbar region of the back and the arm rests are adjustable vertically as well as the head rest. I wish the arm rests were able to rotate in and out for added customization and that the back of the chair could be adjusted up and down for more precise support. But for a budget chair, it does a good job.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
F
Verified Purchase
farmhousewife
Lake Worth, US
★★★★★ 5
A solid chair for the budget conscious sitter.
Color: Black, Size: Pack of 1
While this is not THE most comfortable chair, let's face it - if you sit for long periods, what chair IS? I bought this chair because I'm making a career change. I've returned to school and spend hours at my desk. At the age of 50, sitting for a long time with my nose pointed toward a book can be hard on the seat, back and neck. I looked at all kinds of office chairs and settled on this one, primarily because it was on sale, was in my budget and so I clicked the "Add to cart" button and hoped for the best. It was delivered, and I had to work that evening, and when I got home my 17-year-old son had assembled it. My theory on the simplicity of assembly can be deduced from that sentence above. He didn't have any extra parts left over and the chair was complete! I sat down. I leaned back. I shifted the lever that keeps the chair in an upright position and sat straight up. Okay! I can live with this. It has been almost two full months of using this chair and I have no problems. Pros: easy to assemble sufficient comfort level - adequate cushion in the seat can be leaned back or pop the lever in to stay straight up rollers on bottom headrest is adjustable affordable easy to clean arm-rests can be moved up or down height adjustment is self-explanatory - you'll figure it out the "lumbar" support is actually comfortable - it's "there" if you back up to it but if you scoot forward just a bit, you won't feel it if you don't want to sit like that Overall this seems like a chair that's going to last me for a few years, at least, and not fall apart. In the context of size, I'm not a small or extra larger person. I'm an average middle-aged woman with meat on the bones. The seat is plenty big enough. I would recommend this chair as an upgrade to the hand-me-down office chair that just isn't comfortable any longer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 1, 2023
A
Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Love this chair!
Color: Black, Size: Pack of 1
I had an office chair that cost $300 more than this chair - had it for years, then things started breaking down on it. I read about this chair and, wow! I wish I had known about it sooner. It's more comfortable and it's not a chore to sit for a couple of hours working on designs. Wonderful design - supports my back well and it's very stable, easy to adjust.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
R
Verified Purchase
Rogelio Luna
Louisville, US
★★★★★ 5
Genuine Quality
Color: Black, Size: Pack of 1
Absolutely love this office chair! Super comfortable, sturdy, and easy to adjust. It made a huge difference during long hours at my desk, and the quality feels excellent for the price. Highly recommend!
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Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jon
Natrona Heights, US
★★★★★ 3
Good chair with some quality issues
Color: Black, Size: Pack of 1
I've been using this chair for 12+ hours a day for the last 5 or 6 months and so far it is much better than my last chair I bought at Staples with a few problems. First, overall the chair is still comfortable when set properly, the cushion on the bottom is a little worn out but is still comfortable and I find the backrest comfortable except for the lumbar support which has very little cushioning and feels like a plastic brick being pushed into my back, however I find that I can keep it mostly out of the way most of the time and it isn't noticeable when I carry most of my weight on my upper back area while reclining. The reclining angle is super comfortable and the mesh on the back is not noticeably worn out. I like the headrest which is made of a cushioned mesh, its not better than a pillow but it's very comfortable to be able to rest your head in a chair you are going to sit in for long hours and gives good support. The arm rests don't feel amazing, they have a very stiff plasticky cushion feeling that I'm not much a fan of in terms of pure comfort but they get the job done as I mostly only rest my elbows on them when typing. The arm rest adjustment has a pretty good height range and I keep them at the highest settings and set as close to the chair as possible. While the chair may be comfortable, I have had some quality issues that bring down my opinion of the chair. First, my right arm rest does not go as high as my left arm rest and I have to set the left one down two positions to match the right one Second, the back rest locking for the upright position is broken but I can rarely get it to work as long as I don't put much weight on the back. I would imagine that most people would want to lock the chair upright as opposed to the other positions. Third, the 3 screws holding in the backrest untighten themselves over time, causing the backrest to move to its furthest back position and rock left or right if I lean on either side. When I tighten them again they will usually last about 1-2 weeks before becoming mostly loose again. There is no danger of the screws completely falling out though, just losing their tightness Lastly, I'm not sure how stable or secure the wood panel at the bottom of the seat that everything attaches to is strong enough, I used to have my armrests adjusted out further from the center but when I would lift up on my arms to adjust my seating position I would occasionally hear a sound of the wood stressing under the torque from the armrests. since I moved both armrests as close to the center as I can this has not happened; I would like them a little bit wider but I don't want to risk breaking the chair over it. Also, one of the factory-installed screws in the bottom seat panel fell out and wont stay back in but I haven't noticed any problems other than the risk of stepping on a screw caused by it While this is likely the most comfortable chair I've ever sat in, I have to give it 3 stars for the uncomfortable lumbar support and the quality control issues. If the QC issues were fixed I could easily give this chair a 4 star review
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Reviewed in the United States on March 20, 2022

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