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Description
Dahua 4MP groothoek vaste bullet WizSense camera (IPC-HFW3441T-AS-P)Productbeschrijving De IPC HFW3441T AS P is een IP bewakingscamera voor buiten uit de Dahua WizSense serie. De camera is uitgerust met een 1 2,7 inch CMOS sensor met een videoresolutie van 4 megapixels (2880 1620 pixels). De vaste lens van 2,1 mm maakt een diagonale kijkhoek van 180 mogelijk (met LDC aan) voor het bewaken en bewaken van doelen. BLC (Back Light Compensation) helpt bij het bekijken van details in donkere objecten en kan tegelijkertijd
Productbeschrijving
De IPC-HFW3441T-AS-P is een IP-bewakingscamera voor buiten uit de Dahua WizSense-serie. De camera is uitgerust met een 1/2,7 inch CMOS-sensor met een videoresolutie van 4 megapixels (2880 × 1620 pixels). De vaste lens van 2,1 mm maakt een diagonale kijkhoek van 180° mogelijk (met LDC aan) voor het bewaken en bewaken van doelen.
BLC (Back Light Compensation) helpt bij het bekijken van details in donkere objecten en kan tegelijkertijd zeer heldere objecten filteren. HLC (Highlight Compensation) is een functie die is ontstaan vanuit de behoefte om de intensiteit van verblindend licht waaraan een camera kan worden blootgesteld (koplampen, reflectoren, enz.) te verminderen. Wide Dynamic Range (WDR)-technologie wordt in bewakingscamera's gebruikt om problemen veroorzaakt door blootstelling aan licht te compenseren met behulp van geavanceerde software. Dit werkt door twee beelden met verschillende belichtingen vast te leggen, waardoor een ander helder beeld ontstaat met een balans tussen licht en donker.
De camera biedt u de mogelijkheid om 's nachts beelden te bekijken tot een maximale afstand van 20 m, dankzij IR-leds. De beschermingsgraad wordt gegarandeerd door de IP67-norm, die een hoge weersbestendigheid (water, stof) biedt. De IPC-HFW3441T-AS-P werkt bij temperaturen tussen -40 °C en +60 °C en de voeding is 12 VDC of PoE (802.3af).
Specificaties
| Camera | |
| Beeldsensor | 1/2,7" CMOS |
| Maximale resolutie | 2880 (H) × 1620 (V) |
| ROM | 128 MB |
| RAM | 512 MB |
| Scansysteem | Progressief |
| Elektronische sluitertijd | Automatisch/Handmatig 1/3 s–1/100.000 s |
| Minimale verlichting | 0,01 [email protected] (kleur, 30 IRE) 0,001 [email protected] (zwart-wit, 30 IRE) 0 lux (belichting aan) |
| S/N-verhouding | >56 dB |
| Verlichtingsafstand | Tot 20 m (65,62 ft) (IR-LED) |
| Aan/uit-regeling van de verlichting | Auto |
| Illuminatornummer | 2 (IR-LED) |
| Pan/Tilt/Rotatiebereik | Pan: 0°–360° Kantelen: 0°–90° Rotatie: 0°–360° |
| Lens | |
| Lenstype | Vaste brandpuntsafstand |
| Lensvatting | M12 |
| Brandpuntsafstand | 2,1 mm |
| Maximaal diafragma | F2.0 |
| Gezichtsveld | LDC is uitgeschakeld: Horizontaal: 180°; Verticaal: 78°; Diagonaal: 180° LDC is ingeschakeld (standaard): Horizontaal: 170°; Verticaal: 75°; Diagonaal: 175° |
| Korte scherpstelafstand | 0,6 m (1,97 ft) |
| Intelligentie | |
| IVS (Perimeterbeveiliging) | Indringing, struikeldraad (de twee functies ondersteunen de classificatie en nauwkeurige detectie van voertuigen en mensen) |
| Snelle keuze | Met AI NVR kunt u snel de menselijke/voertuigdoelen detecteren waar gebruikers in geïnteresseerd zijn van SMD-evenementen |
| Slim zoeken | Werk samen met Smart NVR om verfijnde, intelligente zoekopdrachten uit te voeren, gebeurtenissen te extraheren en samen te voegen tot gebeurtenisvideo's |
| Video | |
| Videocompressie | H.265; H.264; H.264B; MJPEG (alleen ondersteund door de substream) |
| Slimme codec | Slimme H.265+; Slimme H.264+ |
| AI-codering | AI H.265; AI H.264 |
| Videoframesnelheid | Hoofdstream: 2880 × 1620 @(1–20 fps)/2688 × 1520 @(1–25/30 fps) substream: 704 × 576 @ (1–25 fps)/704 × 480 @ (1–30 fps) derde stream: 1920 × 1080 @ (1–25/30 fps) *De bovenstaande waarden zijn de maximale framesnelheden van elke stream; voor meerdere streams worden de waarden bepaald door de totale coderingscapaciteit. |
| Stream-capaciteit | 3 streams |
| Resolution | 5M (2880×1620); 4M (2688×1520/2560×1440); 3M (2048×1536); 2304 × 296; 1080p (1920 × 1080); 1,3M (1280×960); 720p (1280×720); D1 (704×576/704×480); VGA(640 × 480); CIF(352 × 288/352 × 240) |
| Bitsnelheidsregeling | CBR/VBR |
| Videobitsnelheid | H.264: 3 kbps–8192 kbps; H.265: 3 kbps–8192 kbps |
| Dag/Nacht | Auto (ICR)/Kleur/Z/W |
| BLC | Ja |
| HLC | Ja |
| WDR | 120 dB |
| Scène Zelfaanpassing (SSA) | Ja |
| Witbalans | Auto; natuurlijk; straatlantaarn; buiten; handmatig; regionaal gebruik |
| Krijg controle | Automatisch; Handmatig |
| Ruisonderdrukking | 3D-ruisonderdrukking |
| Bewegingsdetectie | UIT/AAN (4 zones, rechthoekig) |
| Regio van interesse (RoI) | Ja (4 gebieden) |
| Slimme verlichting | Ja |
| Ontwasemen | Ja |
| Beeldrotatie | 0°/90°/180°/270° (Ondersteunt 90°/270° met een resolutie van 2688×1520 en lager) |
| Spiegel | Ja |
| Privacymaskering | 4 gebieden |
| Audio | |
| Ingebouwde microfoon | Ja |
| Audiocompressie | G.711a; G.711Mu; PCM; G.726; G.723 |
| Alarm | |
| Alarmgebeurtenis | Geen SD-kaart; SD-kaart vol; SD-kaartfout; netwerkverbinding verbroken; IP-conflict; illegale toegang; bewegingsdetectie; videomanipulatie; struikeldraad; indringing; scènewijziging; audiodetectie; spanningsdetectie; extern alarm; SMD; beveiligingsuitzondering |
| Netwerk | |
| Netwerkpoort | RJ-45 (10/100 Base-T) |
| SDK en API | Ja |
| Cyberbeveiliging | Videoversleuteling; configuratieversleuteling; Digest; WSSE; accountvergrendeling; beveiligingslogs; genereren en importeren van X.509-certificering; HTTPS; vertrouwde opstart; vertrouwde uitvoering; vertrouwde upgrade |
| Netwerkprotocol | IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; SNMP; P2P |
| Interoperabiliteit | ONVIF (Profiel S/Profiel G/Profiel T); CGI; P2P |
| Gebruiker/Host | 20 (Totale bandbreedte: 64 M) |
| Opslag | FTP; SFTP; Micro SD-kaart (ondersteunt max. 256 GB); NAS |
| Browser | IE Chrome Firefox |
| Beheersoftware | SmartPSS Lite; DSS; DMSS |
| Mobiele client | iOS; Android |
| Certificering | |
| Certificeringen | CE-LVD: EN62368-1; CE-EMC: Richtlijn elektromagnetische compatibiliteit 2014/30/EU; FCC: 47 CFR FCC Deel 15 , Subdeel B; UL/CUL: UL62368-1 & CAN/CSA C22.2 nr. 62368-1-14 |
| Port | |
| Audio-ingang | 1 kanaal (RCA-poort) |
| Audio-uitvoer | 1 kanaal (RCA-poort) |
| Alarmingang | 1 kanaal in: 5 mA 3–5V DC |
| Alarmuitgang | 1 kanaaluitgang: 1.000 mA 30V DC/500 mA 50V DC |
| Stroom | |
| Voeding | 12 VDC/PoE |
| Stroomverbruik | Basis: 3,1 W (12 V DC); 5,3 W (PoE) Max. (H.265 + hoofdstream/IR-intensiteit + IR aan): 4 W (12 V DC); 6,5 W (PoE) |
| Omgeving | |
| Bedrijfstemperatuur | –40 °C tot +60 °C (–40 °F tot +140 °F)/Minder dan 95% RV |
| Opslagtemperatuur | –40 °C tot +60 °C (–40 °F tot +140 °F) |
| Bescherming | IP67 |
| Structuur | |
| Behuizing | Metaal |
| Productafmetingen | 249,3 mm × 90,7 mm × 90,4 mm (9,81" × 3,57" × 3,56") (L × B × H) |
| Nettogewicht | 820 gram (1,81 lb) |
| Brutogewicht | 1090 gram (2,40 pond) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.8 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Good quality, fairly easy assembly
Color: White
Comfortable chair as advertised. Assembly time about 20 minutes with one screwdriver needed.
(Note: don't follow the instructions included. Lay the left arm assembly down on the floor and THEN affix the seat, followed by turning that over on its side and adding the right arm assembly. Trying to affix the two arms in an upright position is too difficult as directed.)
The only thing I don't like about it is the fluted upholstery on the seat and back, where a bit more padding would have helped greatly. Otherwise, it's comfortable and functional and reasonably priced. Delivery was on time.
ADDITIONAL COMMENTS AFTER 18 MONTHS OF USE: I've used the chair for 6-8 hours a day. The leather on the arms is cracking in multiple places. This is a big disappointment. And speaking of the arms, there's a major problem with the sewing of the leather on the outside edge of both left and right arms: the stitching is on the top at the outer edge, which means that it forms a jagged edge that your arms scrape on when resting on the leather. That jagged edge scraping my skin has caused a great deal of chafing, is most irritating, and could have been avoided entirely if they had just applied the stitching one inch further down on the side rather than along the top flat edge. This is a major design flaw. I will not buy this chair again because of the one flaw and the too-thin, cracking leather on the flat top of the arms, which is too bad, because it's fine in all other ways.
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Reviewed in the United States on April 13, 2020
★★★★★ 3
Good, but not great
Color: White
I work from home, so having a really comfortable chair that supports my back and provides me a nice place to sit for 8 hours is really important to me. I ordered this chair in March 2023 and was really happy with it at first. Sleek, easy to put together, and comfortable. I then had an issue with it because after I sat on it while wearing leggings, the entire seat and armrests turned black from the fabric. No other furniture I own turns black from my leggings. I reached out to the seller and they were kind enough to provide me a replacement for the seat and the two armrests at no charge. I went through the whole summer and didn't wear leggings. However, I am now in Oct 2023 and wearing leggings again. The chair seat and armrests are black again, but there is also a lot of wear to the chair in general. I understand I sit in it a lot, but the seat lost its comfort factor. Additionally, I lean on the left armrest a lot and it shows - there is a large indent on it. The fake leather material is just not for me and the chair no longer looks attractive. I wish it lasted longer considering how much I paid for it.
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Reviewed in the United States on October 9, 2023
★★★★★ 5
Worth Every Penny
Color: Black
Bought this chair Aug 2023 and as i come up on 3 years with this chair i can say i absolutely love this chair.
i bought this chair when i was having very bad back pain and assuming my old chair was to small i decided to purchase it. Zero complaints about this chair at all, no rips, cuts or broken parts. The chair does have some cracking but that's because I'm fat so its a lot for the chair to hold on a daily bases. I give this chair a lot of props for removing my back pain considering my back pain was due to a popped gallbladder that was infected..
If you are reading reviews and looking for a good chair that's worth the money just get this. Its easy to assemble & it has great stability AND most importantly it holds the weight of myself.. I'm built like a butter ball turkey..
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Reviewed in the United States on June 9, 2026
★★★★★ 1
1 year review from a teleworker
Color: Grey
I purchased the Homall Office Chair in March of 2022, with high expectations of comfort and functionality. I liked how the chair looked, its price point, and it received positive reviews. Unfortunately, my experience with this chair has been underwhelming, to say the least. Several issues, ranging from poor quality to difficult assembly, have left me deeply dissatisfied with my purchase.
Let's start with the assembly process, which was an absolute nightmare. The instructions provided were not terrible, but not great either. It took me significantly longer than anticipated to assemble this chair, and I consider myself fairly handy. If you're not well-versed in putting together furniture, you may find yourself extremely frustrated.
Another significant issue I encountered was with the chair's hydraulic cylinder. It has already started failing, causing the chair to slowly sink, regardless of the adjustment settings. This rendered the height adjustment feature useless and made for an uncomfortable seating position. I expected a durable and reliable chair, but sadly, this was not the case.
The armrests were also a major disappointment. They started to deform and indent where my elbows and arms sit. The rest of the chair is fine. I can sit it in all day, so that is a positive. I mainly lean a bit forward and don't have time to lounge backward.
On top of all these issues, the Homall Office Chair proved to be quite noisy. Whenever I shifted my weight or made any slight movements, the chair emitted creaking and squeaking sounds. Not only was it an annoyance, but it also disrupted my concentration while working and is embarrassing on conference calls. Having such a distracting and low-quality chair in a professional environment is disappointing.
If I read this review I would have a couple of questions about the reviewer. I am 6'3" but well below the recommended weight. I review plans and specs as part of my job, so I am good with instructions. My hobby is woodworking which requires skill and a calm demeanor. Yes, I did retighten any connectors that became loose through normal wear and tear.
I should have spent more money on a quality chair since I am now looking to purchase a different chair 1 year later. I would advise others to take that into consideration. Spend a little more and keep less junk out of our landfills.
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Reviewed in the United States on May 26, 2023
★★★★★ 5
High Quality Rolling Chair
Color: Black/Silver
My son LOVES this desk chair. He has a drafting table to draw and do schoolwork on, and this provides him a comfortable chair to work in. It is sturdy and easy to clean. It does not fold, but it does roll easily. It was VERY EASY to put together. We were also pleased with the price. He will be able to use it for years to come.
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Reviewed in the United States on January 2, 2026