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Description
DAHUA®|HAC-HDW2802TP-A|3 YR WTY. 4K Starlight IR Turret, 50m IR, 2.8mm, Audio, Full Metal, HD/SD, 12Vdc *Special order. 3-5 days lead timeExperience 4K video surveillance with the simplicity of reusing existing coaxial infrastructure. The 4K HDCVI camera adopts a powerful Dahua ISP and advanced 1 2" image sensor, which provides superior high quality images. It also supports Starlight and 120dB true WDR for a clear image in poor lighting conditions. In addition, the camera features broadcast quality audio to provide enhanced supplementary evidence collection. Ultra high definition and a
Experience 4K video surveillance with the simplicity of reusing existing coaxial infrastructure. The 4K HDCVI camera adopts a powerful Dahua ISP and advanced 1/2" image sensor, which provides superior high quality images. It also supports Starlight and 120dB true WDR for a clear image in poor lighting conditions. In addition, the camera features broadcast quality audio to provide enhanced supplementary evidence collection.
Ultra--high definition and a complete set of features makes the 4K HDCVI camera an ideal choice for mid to large-size businesses and projects where both highly reliable surveillance and construction flexibility are demanded.
Features
- 4 Signals over 1 Coaxial Cable - HDCVI technology supports 4 signals to be transmitted over 1 coaxial cable simultaneously, i.e. video, audio*, data and power. Dual-way data transmission allows the HDCVI camera to interact with the HCVR, such as sending control signal or triggering alarm. Moreover, HDCVI technology
supports PoC for construction flexibility.
* Audio input is available for some models of HDCVI cameras. - Long Distance Transmission - HDCVI technology guarantees real-time transmission at long distance without any loss. It supports up to 700m transmission for 4K and 4MP HD video via coaxial cable, and up to 300m via UTP cable.*
*Actual results verified by real-scene testing in Dahua's test laboratory. - Simplicity - HDCVI technology inherits the born feature of simplicity from traditional analogue surveillance system, making itself a best choice for investment
protection. HDCVI system can seamlessly upgrade the traditional analogue system without replacing existing coaxial cabling. The plug and play approach enables full HD video surveillance without the hassle of configuring a network. - Starlight - With the adoption of large sized high performance sensor, the camera is able to provide incomparable performance even under extreme lowlight environment. The starlight feature allows more details to be captured and accurate colour to be recognized at night or in scenes with limited illumination.
- Broadcast-quality Audio - Audio information is used as supplementary evidence in video surveillance applications. The HDCVI camera supports audio signal transmission over coaxial cable. In addition, it adopts unique audio processing and transmission technology that best restores source audio and eliminates noise, guaranteeing the quality and effectiveness of collected audio information.
- Multiple-formats - The camera supports multiple video formats including HDCVI, CVBS, and other two common HD analogue formats in the market. A DIP switch located on the cable allows you to quickly toggle formats, further simplifying installation and debugging. This feature makes the camera compatible with not only XVRs, but also most existing HD/SD DVRs.
- Wide Dynamic Range - Embedded with industry leading wide dynamic range (WDR) technology, vivid pictures are achieved even in the most intense contrast lighting conditions. True WDR (120dB) optimizes both the bright and dark areas of a scene at the same time to provide usable video.
- Advanced 3DNR - 3DNR is noise reduction technology that detects and eliminates random noises by comparing two sequential frames. Dahua’s advanced 3DNR technology allows remarkable noise reduction with little impact to sharpness,
especially under limited lighting condition. Besides, the advanced 3DNR effectively decreases the band width and saves the storage space. - Protection - The camera's outstanding reliability is unsurpassed due to its rugged design. The camera is protected against water and dust with IP67 ranking, making it suitable for indoor or outdoor environments. Supporting ±30% input voltage tolerance, this camera suits even the most unstable power supply conditions. Its 4KV lightning rating provides protection against the camera and its structure from the effects of lightning.
Specifications
- Starlight, 120dB True WDR, 3DNR
- Max. 4K resolution
- HD/SD switchable
- Audio in interface, built-in mic
- 2.8mm fixed lens
- Max. IR length 50m, Smart IR
- IP67, DC12V±30%
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
The author emphasizes Trump’s good qualities.
Format: Hardcover
Excellent book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2025
★★★★★ 5
Dispassionate, Authoritative & Delightful
Format: Hardcover
Impartial: This dispassionate history of the Supreme Court should be read by everyone genuinely concerned about the future of our country and the rule of law. It's impartiality will likely infuriate those on the Left or Right who would prefer to vilify and demolish this branch of our government. There are plenty of books out there that will support your rage. But this book is a deep breath of fresh air.
I speak as a member of the bar of the Supreme Court, a retired federal judge, and a lifelong Democrat. The Most Powerful Court In the World (an accurate title) It is the first serious and nonpartisan book written about the Supreme Court in at least the last 30 years. Chock full of details and yet eminently readable.
Context: Law Professor Banner puts today's Court in its historical context, demolishing the proposition that in the good old days the Court was a quiet and apolitical sanctum of wisdom and that it has only recently become controversial and political. It's been extremely controversial since at least 1803. Banner's recounting of the historical facts (including wonderful anecdotes) lifts the reader from the immediate tumult of 2024 headlines and provides us with the long view of the Court and the evolution of the law and the Court. Examples include:
1. Court packing (it started with John Marshall in 1801) and manipulating the number of Justices to help, or prevent, Presidential agenda's and appointments (1801).
2. Diversity on the Court (regional, religious, racial, gender)
3. Reconstruction and Jim Crow.
4. The Commerce Clause revolution and its sequel.
5. The rise of individual liberty litigation and decisions in the 20th century, starting with the novel idea of applying the Bill of Rights to the States. Religion, free speech, Roe, Dobbs.
5. The winning judicial strategies for challenging racial discrimination, sexual and gender discrimination and LGBTQ+ discrimination cases to the Court and their current erosion. Affirmative action and its demise.
6. The fact that the Court (composed of lawyers who are taught to revere history, precedent and law) has been a conservative institution for its entire history except for 15 years right after FDR when, for a short interval, it moved to the Left.
7. Movements to reform the Court (age limits, more justices, Congressional veto, jurisdiction stripping) have been perennial. Including Biden's Presidential Commission Report of 2021.
8. The fact that the Justices are human beings who have hobnobbed with the President, VP, Senators, Politicos and Business people forever. Frankfurter played poker with FDR, Douglas took a $12,000 per year salary from the owner of a Las Vegas Casino, Fortas took $20,000 per year from Louis Wolfson, who was later convicted and sent to prison. Spouses who worked for law firms that appeared before the Court.
The reader will note that in his discussion of every case, especially the modern ones, Professor Banner provides a representative and pithy quote from the Majority decision and from the dissent. He recounts them fairly and does not take sides. He lets the reader think about it.
This book is a delightful change from the norm for modern SCOTUS literature - which is either a partisan hatchet job by a journalist or professor, a compendium of gossip from the law clerks willing to talk, or the warm and neutral memoire or musings of a current Justice trying to make a buck or a former Justice burnishing his or her place in history. Banner gives you as straight, objective and unvarnished a history as you are likely to get these days. It is not a hit-job. It is not a hagiography.
The Most Powerful Court in the World should be required reading for any student of the Supreme Court.
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Reviewed in the United States on November 26, 2024
★★★★★ 5
Should Be Required Reading!
Format: Hardcover
All citizens should read this captivating history of the Supreme Court and learn that there's no much new in recent criticisms of the court; criticism based on the outcome of a case and not the legal reasoning and jurisprudence behind the outcome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 22, 2026
★★★★★ 4
Good history of the court despite some bias
Format: Hardcover
This was a very interesting history of the court and a fairly good account of how it had changed as well as in other ways not changed over 2 centuries. In the final part regarding the current court, it is apparent that the author is not even handed regarding his analysis of the current justices and decisions, especially regarding anything involving President Trump. Overall, scholarly and well cited with much good analysis and explanation, at least through 80% or so of the book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Even handed approach and approachable
Format: Kindle
The accolades provided by the book reviewers are accurate. This is accessible, non-partisan and shows a keen understanding of how our legal system has developed over the history of the US. As a practicing attorney, I found myself exclaiming over and again "wow, I didn't realize that!" throughout the read. I studied many of the cases he discusses in law school. I've read other books about the Supreme Court included Wm. Rhenquist's History of the Supreme Court and The Bretheren. Even though I was a serious student, I was enlightened by the author's telling of the story. Like a good history book, this is well-researched.
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Reviewed in the United States on April 14, 2025
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