SKU: 96100125613

DAHUA IPC-HFW1831C-PIR 8MP WDR IR Mini Bullet Network Camera(EOL)

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Description

DAHUA IPC-HFW1831C-PIR 8MP WDR IR Mini Bullet Network Camera(EOL)IPC HFW1831C PIR Product Data Camera Image Sensor 1 2. 5 8Megapixel progressive scan CMOS Effective Pixels 3840(H) x 2160(V) RAM ROM 512MB 32MB Scanning System Progressive Electronic Shutter Speed Auto Manual, 1 3(4)~1 100000s Minimum Illumination 0. 002Lux F2. 0( Color,1 3s,30IRE) 0. 09Lux F2. 0( Color,1 30s,30IRE) 0Lux F2. 0(IR on) S N Ratio More than 40dB IR Distance Distance up to 20m (65. 6ft) IR On Off Control Auto Manual IR LEDs 1 White Light

IPC-HFW1831C-PIR 

 



Product Data

Camera

Image Sensor

1/2.5” 8Megapixel progressive scan CMOS

Effective Pixels

3840(H) x 2160(V)

RAM/ROM

512MB/32MB

Scanning System

Progressive

Electronic Shutter Speed

Auto/Manual, 1/3(4)~1/100000s

Minimum Illumination

0.002Lux/F2.0( Color,1/3s,30IRE)

0.09Lux/F2.0( Color,1/30s,30IRE)

0Lux/F2.0(IR on)

S/N Ratio

More than 40dB

IR Distance

Distance up to 20m (65.6ft)

IR On/Off Control

Auto/ Manual

IR LEDs

1

White Light Distance

Distance up to 10m (32.8ft)

White Light

2

Lens

Lens Type

Fixed

Mount Type

Board-in

Focal Length

2.8mm

Max. Aperture

F2.0

Angle of View

H: 107° V: 57°

Optical Zoom

N/A

Focus Control

Fixed

Close Focus Distance

0.8m (2.62ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

2.8mm

69m(226ft)

28m(92ft)

14m(46ft)

7m(23ft)

PTZ

Pan/Tilt/Rotation Range

Pan:0˚~360˚; Tilt:0˚~90˚

Intelligence

Event Trigger

Motion detection, Video tampering, Scene changing, Network disconnection, IP address conflict, Illegal access, Storage anomaly

IVS

Tripwire, Intrusion

Video

Compression

H.265/H.264H/MJPEG(Sub Stream)

Smart Codec

Support H.265+/H.264+

Streaming Capability

2 Streams

Resolution

4K(3840×2160)/6M(3072×2048)/5M(2560×1920)/

3M(2048x1536)/3M(2304×1296)/

1080P(1920×1080)/1.3M(1280x960)/

720P(1280×720)/D1(704×576/704×480) /VGA(640×480)/CIF(352×288/352×240)

Frame Rate

Main Stream: 4K (1~15fps)

Sub Stream: D1(1~15fps)

Bit Rate Control

CBR/VBR

Bit Rate

H.264:32K ~ 8192Kbps

H.265:32K~ 8192Kbps
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SKU: 96100125613

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4.1 ★★★★★
Based on 14 reviews
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Product Reviews
K
Verified Purchase
Khatuna Brady
Alexandria, US
★★★★★ 2
A masterfully falsified history of the late Soviet developments
Format: Paperback
This book represents academic propaganda, providing some interesting insights into important events. Some details are true, but some crucial details are omitted. It represents a sanitized version of Russia's modern history. It provides misleading information about Gorbachev's constitutional reforms, aimed at partitioning of 15 republics into 53 confederation entities. Originally, the targeted republics were Kazakhstan, Moldova, Georgia, Azerbaijan, Ukraine, etc. Those conflicts were manufactured by the Soviet center to discredit "nationalists," facilitate the partition of national republics, and grant Moscow right to protect ethnic minorities. According to Starovoitova, Bakatin, Yakovlev, and a few other primary sources, the Soviet security services led special operations in the Caucasus and Central Asia to provoke those conflicts. Zubok avoids citing those parts. Using the imperial approach of "divide and rule," Moscow attempted to become a peacekeeper in the conflicts it created between different ethnicity. In addition to fragmenting the republics with well-developed national identities, Gorbachev's new constitution would revoke their right to leave the USSR, written in Lenin's 1922 Constitution (Shakhnazarov, 1992). Zubok does not explain any of it. His book is an effort to protect the truth and conceal facts with Russian myths and lies about nationalism (also referred to as Nazism). Notably, Zubok does not recognize non-Russian republics and describes them as "territories." He mentions Pitsunda as a resort on the Black Sea, not as Georgia. For lying about the genocidal ethnic cleansing conducted by the Russian military against the Georgian population of Abkhazia, Zubok owes apology to the victims of conflicts and wars initiated by Gorbachev and carried on by Yeltsin. The story about "the hardliners coup against Gorbachev" is also a big fat lie. American scholars, Amy Knight, John Dunlop, and William Odom provide more accurate insights. For Russian sources, read Marshal Shaposhnikov or Aleksandr Lebed's memoirs (1995) and listen to Gennady Yanaev's interview (2009). According to Mitrokhin archives (original), the August 1991 coup was an active measure the KGB developed per Gorbachev's request. The so-called coup was part of Gorbachev's constitutional reform, which would lead to the removal of unfriendly leaders (including Yeltsin) from the republics. It failed because the Soviet military brass, foremost Pavel Grachev, had defected to Yeltsin earlier in 1991. When you read a book by a seasoned Russian propagandist, like Zubok or Trenin, take it with a grain of salt, because it will always contain a mix of lies and truth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2023
U
Verified Purchase
Ujjval K. Vyas
New York, US
★★★★★ 5
An important work and worth the time.
Format: Hardcover
Real scholarship addressing difficult but important topics in history, economic history, and development. What every economist should read to think much more deeply about how institutions, culture, and human agency interact. At the same time, scholars like the three co-authors demonstrate that there still remains the possibility of doing work that isn’t larded with ideological or activist posturing. Highly recommended.
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Reviewed in the United States on May 5, 2026
H
Verified Purchase
Hal in Bloomington, Indiana
Pawtucket, US
★★★★★ 5
Excellent research and well written by a Noble Laureate
Format: Hardcover
Excellent research and well written.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 10, 2025
D
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David Freshwater
New York, US
★★★★★ 2
should have been shorter
Format: Hardcover
really interesting approach - but far too wordy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 3, 2026
T
Verified Purchase
T
Waukegan, US
★★★★★ 5
6 year old loves these books
Format: Paperback
One of my son’s favorite book series.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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