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Description
Dahua 2MP 25x Starlight WizSense PTZ-camera (SD50225DB-HNY)Productbeschrijving De Dahua WizSense SD50225DB HNY IP PTZ Dome is een hightech bewakingscamera die is ontworpen voor nauwkeurige en efficinte bewaking in elke omgeving. Met een 2MP sensor en 25x optische zoom levert hij heldere beelden, zelfs bij weinig licht, dankzij de 120dB WDR en Smart H. 265+ technologie. Deze camera beschikt over een geavanceerd gezichtsdetectiesysteem, perimeterbeveiliging en SMD, waardoor beveiligingsgebeurtenissen in
Productbeschrijving
De Dahua WizSense SD50225DB-HNY IP PTZ Dome is een hightech bewakingscamera die is ontworpen voor nauwkeurige en efficiënte bewaking in elke omgeving. Met een 2MP-sensor en 25x optische zoom levert hij heldere beelden, zelfs bij weinig licht, dankzij de 120dB WDR en Smart H.265+-technologie.
Deze camera beschikt over een geavanceerd gezichtsdetectiesysteem, perimeterbeveiliging en SMD, waardoor beveiligingsgebeurtenissen in realtime kunnen worden geïdentificeerd en gecategoriseerd. De 360° pan-tilt-beweging en rotatiesnelheid tot 350°/sec zorgen voor volledige dekking zonder dode hoeken.
De SD50225DB-HNY is ontworpen om zware omstandigheden te weerstaan en is IP67-gecertificeerd, stof- en waterbestendig en heeft een IK10-vandaalbestendigheidsclassificatie. Bovendien vereenvoudigt de PoE+-voeding de installatie en vermindert de benodigde bekabeling.
Deze camera is compatibel met Onvif-standaarden en meerdere netwerkprotocollen en is ideaal voor geavanceerde beveiligingsprojecten. De ondersteuning voor MicroSD-opslag tot 512 GB maakt lokale opname mogelijk zonder dat een NVR nodig is.
De camera wordt geleverd met een wandhouder en voeding, voor een snelle en veilige installatie. Optimaliseer de beveiliging van uw bedrijf of eigendom met Dahua WizSense-technologie.
Specificaties
| Camera | |
| Beeldsensor | 1/2,8"CMOS |
| Pixel | 2 MP |
| Maximale resolutie | 1920 (H) × 1080 (V) |
| ROM | 128 MB |
| RAM | 512 MB |
| Elektronische sluitertijd | 1/1 s–1/30.000 s |
| Scansysteem | Progressief |
| Minimale verlichting | Kleur: 0,005 [email protected] Zwart-wit: 0,0005 [email protected] |
| Lens | |
| Brandpuntsafstand | 4,8 mm–120 mm |
| Maximaal diafragma | F1.6–F3.5 |
| Gezichtsveld | H: 58,5°–2,8°; V: 33,2°–1,5°; D: 67,5°–3,2° |
| Optische zoom | 25× |
| Focusregeling | Automatisch; semi-automatisch; handmatig |
| Korte scherpstelafstand | 0,1 m–1,0 m (0,34 ft–3,28 ft) |
| Irisbestrijding | Automatisch; handmatig |
| PTZ | |
| Pan/Tilt-bereik | Pan: 0°–360° eindeloos Kantelen: 0° tot +90°, automatisch 180° kantelen |
| Handmatige snelheidsregeling | Pan: 0,1°/s–350°/s Kanteling: 0,1°/s–250°/s |
| Vooraf ingestelde snelheid | Pan: 500°/s; kantelen: 500°/s |
| Vooraf ingesteld | 300 |
| Tour | 8 (tot 32 presets per tour) |
| Patroon | 5 |
| Scannen | 5 |
| Uitschakelgeheugen | Ja |
| Stationaire beweging | Patroon; Voorinstelling; Scan; Tour |
| PTZ-protocol | DH-SD Pelco-P/D (automatische herkenning) |
| Intelligentie | |
| IVS (Perimeterbeveiliging) | Struikeldraad; indringing; detectie van het passeren van een hek; detectie van rondhangen; achtergelaten/vermist object; snel bewegend; parkeerdetectie; mensen verzamelen; classificatie van voertuig-/mensalarmen |
| Gezichtsdetectie | Ondersteunt gezichtsdetectie, gezichtskaders, het maken van snapshots en het verbeteren van gezichtsafbeeldingen. Gezichtsuitsnijding is ook beschikbaar, waarbij u één gezicht tegelijk kunt uitsnijden en de grootte kunt aanpassen tot een foto van 2,54 cm. De ondersteunde methoden voor het maken van snapshots zijn: real-time vastleggen en kwaliteit staat voorop |
| SMD | SMD 3.0 |
| Auto Patrol | Het activeert de IVS-regel wanneer een doelwit wordt gedetecteerd en zorgt ervoor dat de camera verbinding maakt met de PTZ om te roteren naar de positie van het doelwit en te patrouilleren op basis van de voorinstellingen. |
| Video | |
| Videocompressie | H.264H; H.264B; Slimme H.265+; H.264; H.265; MJPEG (substream); Slimme H.264+ |
| Streaming-mogelijkheid | 3 streams |
| Resolution | 1080p (1920 × 1080); 1,3M (1280 × 960); 720p (1280 × 720); D1 (704 × 576); CIF (352 × 288); VGA (640 × 480) |
| Videoframesnelheid | Hoofdstream: 1080p/1,3M/720p@(1–25/30 fps) Substream 1: D1/VGA/CIF@(1–25/30 fps) Substream 2: 1080p/1,3M/720p@(1–25/30 fps) |
| Bitsnelheidsregeling | CBR/VBR |
| Videobitsnelheid | H.264: 2048 Kbps–8192 Kbps H.265: 768 Kbps–6400 Kbps |
| Dag/Nacht | Auto (ICR)/Kleur/Z/W |
| BLC | Ja |
| WDR | 120 dB |
| HLC | Ja |
| Witbalans | Auto; binnen; buiten; tracking; handmatig; natriumlamp; natuurlijk licht; straatlantaarn |
| Krijg controle | Automatisch; handmatig |
| Ruisonderdrukking | 2D-ruisonderdrukking; 3D-ruisonderdrukking |
| Bewegingsdetectie | Ja |
| Regio van interesse (RoI) | Ja |
| Beeldstabilisatie | Elektronisch (EIS) |
| Ontwasemen | Elektronisch |
| Digitale zoom | 16× |
| Beeldrotatie | 180° |
| Privacymaskering | Er kunnen maximaal 24 gebieden worden ingesteld, met maximaal 8 gebieden in dezelfde weergave; meerdere kleuren beschikbaar |
| S/N-verhouding | ≥ 55 dB |
| Audio | |
| Audiocompressie | G.711a; G.711Mu; G.726; MPEG2-Layer2; G722.1; G723; PCM |
| Netwerk | |
| Netwerkpoort | RJ-45 (10/100 Base-T) |
| Netwerkprotocol | TCP; FTP; RTMP; IPv6; Bonjour; IPv4; DNS; RTCP; PPPoE; NTP; RTP; 802.1x; HTTPS; SNMP; TCP/IP; DDNS; UPnP; NFS; ICMP; UDP; IGMP; IP-filter; SMB; HTTP; SSL; DHCP; SMTP; SNMPv1/v2c/v3(MIB-2); Qos; RTSP; ARP |
| Interoperabiliteit | CGI; Dahua SDK; API; SDK; ONVIF(Profiel S&G&T) |
| Streamingmethode | Unicast/Multicast |
| Gebruiker/Host | 20 (totale bandbreedte: 64 M) |
| Opslag | DMSS; FTP; Micro SD-kaart (512 GB); NAS |
| Browser | IE 7 en latere versies Chrome 45 en latere versies Firefox 52 ESR en eerdere versies Safari |
| Beheersoftware | DMSS; DSS Pro |
| Mobiele client | iPhone; iPad; iOS; Android |
| Certificering | CE-EMC: EN 55032; EN 61000-3-3; EN 61000-3-2; EN 50130-4; EN 55035 CE-LVD: EN 62368-1 FCC: 47 CFR FCC Deel 15, Onderdeel B, NSI C63.4 |
| Port | |
| Audio-ingang | 1 kanaal |
| Audio-uitvoer | 1 kanaal |
| Alarmkoppeling | Vastleggen; vooraf instellen; tour; patroon; opname; alarm digitale ingang; e-mail verzenden |
| Alarmgebeurtenis | Bewegings-/manipulatiedetectie; audiodetectie; detectie van verbroken netwerkverbinding; IP-conflictdetectie; detectie van de status van de geheugenkaart; detectie van geheugenruimte |
| Alarm-I/O | 2/1 |
| Audio-I/O | 1/1 |
| Stroom | |
| Voeding | 24 VDC/2,5 A ± 25% PoE+ (802.3at) |
| Stroomverbruik | Basis: 11,6 W Max.: 15,8 W (AI-functies) |
| Omgeving | |
| Bedrijfstemperatuur | –40 °C tot +60 °C (–40 °F tot +140 °F) |
| Bedrijfsvochtigheid | ≤ 95% |
| Bescherming | IP67, IK10, TVS 6000 V bliksembeveiliging; overspanningsbeveiliging; bescherming tegen spanningsstoten |
| Structuur | |
| Productafmetingen | 253,0 mm × Φ186,2 mm (9,96" × Φ7,33") |
| Nettogewicht | 2,5 kg (5,51 lb) |
| Brutogewicht | 4,5 kg (9,92 lb) |
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4.5 ★★★★★
Based on 1635 reviews
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Product Reviews
★★★★★ 5
An amazing book ...
Format: Paperback
An amazing book. Reading the book helped me understand why the US is experiencing difficulties in "perceived righteousness" today. I would recommend it to anyone who would like to change the World for the better.
Howard Zinn is a benevolent hacker: the kind of hacker I would like my children to be, and why not: all children to be.
For me, Zinn’s A People’s History of the United States hacks history and defines a problem and offers a solution:
1. The problem: a one-sided patriotic history enslaves the masses,
2. The solution: a bottom-up, humanistic history empowers everyone and opens the doors for future reconciliations among different communities.(1)
At this critical juncture of human history both are relevant not only for the US but rather for our race.
A one-sided patriotic bias in history: at what cost?
1. hides wrongdoings and the associated guilt,
2. serves as the first line of defense to deflect current & future criticisms for the past & current mistakes,
3. tampers data gathering, silences questioning & divergence of opinions,
4. reduces communication among communities,
5. defines “the patriotic” and increases the chances of populating the armed forces,
6. defines the other: “the unpatriotic,”
7. increases insecurities,
8. evokes fears (of retribution, etc.)
9. can be misused to justify violence against “the other,”
10. builds a common memory for the masses, builds their egos so that these egos can later be exploited,
11. allows the word “culture” to be used as an equivalence: American culture = being American; (2)
12. a politician can mix these facts to incite emotional reactions of the masses and eventually reach a higher number of votes in a predetermined direction, inexpensively,
13. at school, in the media, in speeches of politicians, and during different rituals (starting with reciting the pledge of allegiance and singing of the national anthem) the patriotic history is repeated and reinforced. Under these conditions, the masses learn to repeat what is given to them. They shun away from questioning further. Their concept of free-will is replaced by a misplaced trust. They learn not to deviate from the norm: they are enslaved and are not even aware of this enslavement.
Many words lose their meaning: “a more perfect Union” “Justice” “secure the Blessings of Liberty,” “democracy.” A higher degree of cynicism and later a deep feeling of helplessness ensue. There are costs to the individual, the family, the society. Since many worldwide look up to the US morally, the use of one-sided patriotic history in the US produces world leaders who imitate bad examples. Consequently, Humanity pays dearly.
A bottom-up, humanistic history empowers everyone:
1. can eliminate ignorance,
2. can eliminate convenient forgetfulness,
3. can eliminate arrogance,
4. improve self-esteem, communication, & understanding
5. can reduce violence,
6. can empower the individuals and the masses: psychologically and economically and thus improve the quality of life,
7. can help the path to sustainable peace.
Among the different communities, the wounds are real. A one-sided history often does not address all of these wounds. Denial freezes any possibility of a reconciliation. A reconciliation process would pass through an acceptance of a historical wrong doing.
In time, mankind may realize that what Howard Zinn has started may be the building blocks of sustainable peace.
As a new year starts, I wish upon all of us: nations, creeds, ethnicities, etc. our very own Howard Zinns.
(1) In the US, these communities can be whites, blacks, American Indians, Mexicans, WASPS, Catholics, Jews, Moslems, Chinese, Japanese, etc. In Turkey, where I am from, these communities include the seculars, non-seculars, Alevites, Armenians, Greeks, Jews, Kurds, etc.
(2) Most of us are led to believe that “being” American/WASP/Jewish/Moslem/... is a “culture;” we almost always have these attributes thanks to coincidences; i.e. we are born into these “states;” how can a state that is largely a coincidence, be culture? I would suggest that only what is done through our free-will is deemed culture. Interestingly worldwide, the education systems, the media, and politicians use and propagate the word “culture” to imply largely a static state, rather than the result of a willful action.
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Reviewed in the United States on December 24, 2016
★★★★★ 5
Good quality
Format: School & Library Binding
Perfect!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
★★★★★ 5
Great book perfect for history lovers
Format: School & Library Binding
This book is perfect for people who love history in general. Very interesting topic in that it deserts why different cultures became more prominent than others over time. I’m still getting through it, but wanted to write a positive review because I’m enjoying it so much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2024
★★★★★ 4
Makes you think!
Format: School & Library Binding
Jared Diamond’s Guns, Germs, and Steel is all about figuring out why some societies became super powerful while others didn’t. His main idea is that geography and the environment had a huge impact. Basically, places with good crops and animals to farm had an easier time growing and becoming stronger. The book mixes history, science, and geography in a way that’s pretty easy to follow, even though it covers a lot. Some people think Diamond focuses too much on geography and doesn’t consider enough other factors, but it definitely makes you think differently about history and why the world is the way it is today. It’s a really interesting read if you’re into learning about why things turned out the way they did.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Great book
The narrator possesses a refined and compelling voice, and the author's writing style stimulates the mind. The author uses a tremendous amount of detail to avoid unnecessary/inaccurate generalizations and intentional/unintentional misinterpretations. However, the author executes this feat without allowing the reader to feel lost in mundane facts. I enjoyed the author's use of rhetorical questions to explore the viewpoints of persons who oppose his assertions. Overall, an informative and invigorating read. I highly recommend this book for anyone who has ever asked, "Why did certain people and cultures end up with so much, while others ended up with so little".
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Reviewed in the United States on August 26, 2010