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Description
Dahua 8MP IR Fixed-focal Bullet WizSense camera (IPC-HFW2841S-S)Productbeschrijving De IPC HFW2841S S is een Dahua bewakingscamera voor buiten uit de Wiz Sense serie. De camera is uitgerust met een 1,2 7 inch CMOS sensor met een videoresolutie van 8 megapixels (3840 2160 pixels). De vaste lens van 2,8 mm maakt een diagonale kijkhoek van 125 mogelijk voor het bewaken en bewaken van doelen. BLC (Back Light Compensation) helpt bij het weergeven van details in donkere objecten en kan tegelijkertijd zeer heldere
Productbeschrijving
De IPC-HFW2841S-S is een Dahua bewakingscamera voor buiten uit de Wiz Sense-serie. De camera is uitgerust met een 1,2/7 inch CMOS-sensor met een videoresolutie van 8 megapixels (3840 × 2160 pixels). De vaste lens van 2,8 mm maakt een diagonale kijkhoek van 125° mogelijk voor het bewaken en bewaken van doelen.
BLC (Back Light Compensation) helpt bij het weergeven 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 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 30 m, dankzij de LED-verlichting. De beschermingsgraad wordt gegarandeerd door de IP67-norm, die een hoge weersbestendigheid (water, stof) biedt. De IPC-HFW2841S-S werkt bij temperaturen tussen -40 °C en +60 °C en de voeding is 12 VDC of PoE, waardoor er geen extra kabels nodig zijn tijdens de installatie. De ingebouwde microfoon zorgt voor realtime audiobeveiliging.
Specificaties
| Camera | |
| Beeldsensor | 1/2,7" CMOS |
| Maximale resolutie | 3840 (H) × 2160 (V) |
| ROM | 128 MB |
| RAM | 256 MB |
| Scansysteem | Progressief |
| Elektronische sluitertijd | Automatisch/Handmatig 1/3 s–1/100.000 s |
| Minimale verlichting | 0,009 [email protected] (kleur, 30 IRE) 0,0009 [email protected] (zwart-wit, 30 IRE) 0 lux (belichting aan) |
| S/N-verhouding | >56 dB |
| Verlichtingsafstand | 30 m (98,43 ft) (IR) |
| Aan/uit-regeling van de verlichting | Automatisch; Handmatig |
| Illuminatornummer | 1 (IR-LED) |
| Pan/Tilt/Rotatiebereik | Pan: 0°–360° Kantelen: 0°–90° Roteren: 0°–360° |
| Lens | |
| Lenstype | Vaste brandpuntsafstand |
| Lensvatting | M12 |
| Brandpuntsafstand | 2,8 mm |
| Maximaal diafragma | F2.0 |
| Gezichtsveld | H: 106°; V: 56°; D: 125° |
| Irisbestrijding | Vast |
| Korte scherpstelafstand | 1,3 m (4,27 ft) |
| Intelligentie | |
| IVS (Perimeterbeveiliging) | Indringing, struikeldraad (de twee functies ondersteunen de classificatie en nauwkeurige detectie van voertuigen en mensen) |
| 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.264H; H.264B; MJPEG (alleen ondersteund door de substream) |
| Slimme codec | Slimme H.265+; Slimme H.264+ |
| Videoframesnelheid | Hoofdstream: 3840 × 2160@(1–20 fps)/2688 × 1520@(1–25/30 fps) substream: 704 × 576@(1–25 fps)/704 × 480@(1–30 fps) *De waarden hierboven zijn de maximale framesnelheden van elke stream; voor meerdere streams worden de waarden bepaald door de totale coderingscapaciteit. |
| Stream-capaciteit | 2 streams |
| Resolution | 3840 × 2160 (3840 × 2160); 3072 × 2048 (3072 × 2048); 3072 × 1728 (3072 × 1728); 2880 × 1620 (2880 × 1620); 2688 × 1520 (2688 × 1520); 3M (2048×1536); 2304 × 1296 (2304 × 1296); 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: 32 kbps–8192 kbps H.265: 12 kbps–8192 kbps |
| Dag/Nacht | Auto(ICR)/Kleur/Z/W |
| BLC | Ja |
| HLC | Ja |
| WDR | 120 dB |
| 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 |
| 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 |
| Alarm | |
| Alarmgebeurtenis | Geen SD-kaart; SD-kaart vol; SD-kaartfout; netwerkverbinding verbroken; IP-conflict; illegale toegang; bewegingsdetectie; videomanipulatie; struikeldraad; indringing; audiodetectie; spanningsdetectie; SMD; beveiligingsuitzondering |
| Netwerk | |
| Netwerkpoort | RJ-45 (10/100 Base-T) |
| SDK en API | Ja |
| Netwerkprotocol | IPv4; IPv6; HTTP; TCP; UDP; PRA; RTP; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; Hallo |
| Interoperabiliteit | ONVIF (Profiel S/Profiel G/Profiel T); CGI; P2P; Mijlpaal |
| Gebruiker/Host | 20 (Totale bandbreedte: 48 M) |
| Opslag | FTP; SFTP; Micro SD-kaart (max. ondersteuning 256 GB); SIN |
| Browser | IE Chrome Firefox |
| Beheersoftware | Slimme PSS; DSS; DMSS |
| Mobiele client | iOS; Android |
| Beveiliging | Betrouwbare uitvoering; Digest; Beveiligingslogboeken; WSSE; Accountvergrendeling; Syslog; 802.1x; IP/MAC-filtering; HTTPS; Betrouwbare upgrade; Betrouwbaar opstarten; Genereren en importeren van X.509-certificering |
| 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 |
| Stroom | |
| Voeding | 12 VDC/PoE (802.3af) |
| Stroomverbruik | Basis: 2,7 W (12 VDC); 3,4 W (PoE) Max. (H.265+ max. resolutie + max. stream + WDR + IR-intensiteit + IVS): 4,5 W (12 VDC); 5,4 W (PoE) |
| Omgeving | |
| Bedrijfstemperatuur | –40°C tot +60°C (–40°F tot +140°F) |
| Bedrijfsvochtigheid | ≤95% |
| Opslagtemperatuur | –40°C tot +60°C (–40°F tot +140°F) |
| Opslagvochtigheid | ≤95% |
| Bescherming | IP67 |
| Structuur | |
| Behuizingsmateriaal | Metaal |
| Productafmetingen | 166,2 mm × 70 mm × 70 mm (6,54" × 2,76" × 2,76") (L × B × H) |
| Nettogewicht | 0,48 kg (1,06 lb) |
| Brutogewicht | 0,59 kg (1,30 lb) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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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]
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4.2 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Quality
Color: Black
This is by far the best frother I've used. Battery life is great. Its UX is excellent. Feels nice in the hand and has great power. Also like the on/off button as opposed to haveing to hold a switch down. Looking forward to getting their s3 scale.
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Reviewed in the United States on April 11, 2026
★★★★★ 4
Overall good frother
Color: Black
Bought the Maestri and the Zulay frother to test which one is better since both had good reviews. Returned the Zulay (see Zulay review) and kept the Maestri. Been using it for a few days now and works well. Mixes chai and hot chocolate well. It has one speed that is a good speed to mix, but not so fast that it causes the drink to spill over the top as long as the cup is filled to about 80% full. Because I tend to use the tall 20 oz Contigo autoseal cups, it could benefit from offering longer attachments to reach the bottom of the cup (note: that I did not find any company that offers longer attachment arms).
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Reviewed in the United States on January 28, 2026
★★★★★ 5
LOVE this frother and the creamy results!
Color: Black
I LOVE this gadget! And I'm not a gadget person.
Since I got it a few days ago, I've switched from using my Nespresso coffee maker, which uses pods and which I really like, to using Starbucks instant coffee packets (cheaper and more environmentally friendly than pods). I put a packet of the coffee and two packets of Equal in a cup, add half and half, then use this frother to mix them. Within a few seconds -- no more than 5, if that -- I have a thick mound of creamy froth. Then I had the water to finish making the coffee. Fantastic. This thing is so easy and fun to use.
This is not the cheapest frother available. I wanted a rechargeable unit that has sufficient power to make nice, creamy froth. Also, I didn't want to spend $10 and have the thing break and have to replace it. Reviews suggest the cheaper ones are fine if you don't regularly use a frother. I never used one before and didn't really think I would use it very often. But I like it so much, I've been using it twice a day.
Also, I first saw one in use while traveling in India. Another guest at my small hotel had one, which she used to make a latte with rather than drink the rather tepid offering at the more tea-oriented hotel. That's when I decided to get one. I'll be taking it on future trips. Some come with travel containers; this one didn't.
The only learning curve was making sure the cup or pitcher for the cream is deap enough not to splash out the cream. I think I'm actually using a little less cream than I used to because the volume increases so much. I use cold cream, not heated (I used to heat it in the microwave when I was using the NesPresso.) I find I like the initial contrast with the cold cream at the top, then I stir it down into the coffee. The Starbucks coffee is excellent. I've used it for iced lattes in the past, so I knew it was good. I can hardly wait for a heat wave to make them with this frother.
I did try to beater attachment in eggs when I was making an omelet. Not worth the trouble -- first, the bowl I was using to beat the eggs was too shallow and egg got all over. Second, a fork works just as well. If I were whipping cream, I would definitely use it.
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Best frother ever
Color: White
This brother is wickedly powerful you don't need to use it for very long to get phenomenal frothing results
Incorporates ingredients quickly
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Works great and so much fun!
Color: Black
How did I live without this for so long? I love this little gadget! It gets used multiple times a day. It's not only great for frothing milk but it will whip eggs for a recipe and stir other ingredients as well. People who have complained that the stirring attachment was missing a piece did not read the description. The picture clearly shows there is no "boot" on that attachment, you don't want that one to spin like the frother. The Frother holds a charge for quite a while as well. I use mine multiple times a day and it is still holding a charge after weeks of daily use. Great item!
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Reviewed in the United States on February 15, 2026