SKU: 9861894184

DAHUA SD4E425GB-HNR-A-PV1 4MP 25x Starlight IR WizSense Network PTZ Camera

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Description

DAHUA SD4E425GB-HNR-A-PV1 4MP 25x Starlight IR WizSense Network PTZ CameraSD4E425GB HNR A PV1 4MP 25x Starlight IR WizSense Network PTZ Camera > 1 2. 8" 4Megapixel STARVIS CMOS. > 25x optical zoom. > Starlight technology. > Max. 25 30fps@4M. > IR distance up to 100 m. > Auto tracking 3. 0. > Perimeter protection. > Face detection. > SMD 4. 0. > IP66. > Full color illuminator; red and blue warning light. Product Data ***** Camera Image Sensor 1 2. 8" CMOS Pixel 4 MP Max. Resolution 2560 (H) 1440 (V) ROM 4 GB RAM 1 GB

SD4E425GB-HNR-A-PV1 

4MP 25x Starlight IR WizSense Network PTZ Camera

> 1/2.8" 4Megapixel STARVIS™ CMOS.
> 25x optical zoom.
> Starlight technology.
> Max. 25/30fps@4M.
> IR distance up to 100 m.
> Auto-tracking 3.0.
> Perimeter protection.
> Face detection.
> SMD 4.0.
> IP66.
> Full-color illuminator; red and blue warning light.



Product Data

*****

Camera

Image Sensor

1/2.8" CMOS

Pixel

4 MP

Max. Resolution

2560 (H) × 1440 (V)

ROM

4 GB

RAM

1 GB

Electronic Shutter Speed

1/1 s–1/30,000 s

Scanning System

Progressive

Min. Illumination

Color: 0.005 [email protected]
B/W: 0.0005 [email protected]
0 [email protected] (illuminator on)

Illumination Distance

100 m (328.08 ft) (IR)
50 m (164.04 ft)(White light)

Illuminator On/Off Control

Zoom Prio; Manual; Auto; Off

Illuminator Number

2 (IR)
2 (Dual light fusion)

Lens

Focal Length

5 mm–125 mm

Max. Aperture

F1.6–F3.6

Field of View

H: 51.9°–3.0°;
V: 39.7°–2.2°;
D: 63.1°–3.7°

Optical Zoom

25×

Focus Control

Auto; semi-auto; manual

Close Focus Distance

0.1 m–0.5 m (0.33 ft–1.64 ft)

Iris Control

Auto; manual

DORI Distance

Detect

Observe

Recognize

Identify

2500 m (8208.10 ft)

987.5 m (3239.83 ft)

500 m (1640.42 ft)

250 m (820.21 ft)

PTZ

Pan/Tilt Range

Pan: 0° to 360° endless
Tilt: –15° to +90°, auto flip 180°

Manual Control Speed

Pan: 0.1°/s–200°/s
Tilt: 0.1°/s–120°/s

Preset Speed

Pan: 240°/s; Tilt: 200°/s

Preset

300

Tour

8 (up to 32 presets per tour)

Pattern

5

Scan

5

Power-off Memory

Yes

Idle Motion

Pattern; Preset; Scan; Tour

Intelligence

IVS (Perimeter Protection)

Tripwire; intrusion; crossing fence detection; loitering detection; abandoned/missing object; fast moving; parking detection; people gathering; vehicle/human alarm classification; linkage tracking

Face Detection

Supports face detection, face bounding box, capturing snapshots, uploading face snapshots, enhancing face images, and selecting a preferred image among a group of snapshots. Attribute Extraction is also supported, where 6 attributes and 8 expressions can be detected. The attributes are gender, age, glasses, mask, mustache and expressions. The expressions are angry, sad, hate, scared, surprised, calm, happy and confused. Face cutout is also offered, where you can cutout one face at a time and customize the size to be a one-inch photo. The supported methods for capturing snapshots are real-time capturing, quality first, and selecting a preferred image among a group of snapshots.

Auto Tracking

Yes

SMD

Yes

Quick Pick

With AI NVR, quickly pick up the human/vehicle targets that users are interested in from SMD events.

Active Deterrence

Light Warning

Red and blue warning light. They can be configured to flash for 5 to 30 seconds with a high, medium or low frequency.

Sound Warning

Offers 11 types of sound alarms, and supports importing custom sound alarms.

Video

Video Compression

H.264H;H.264B;Smart H.265+;H.265;MJPEG(Sub Stream);Smart H.264+;H.264M

Streaming Capability

3 streams

Resolution

4M (2560 × 1440); 3M (2048 × 1536); 3M (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)

Video Frame Rate

Main stream: 4M/3M/1080p/1.3M/720p@ (1–25/30 fps)

Sub stream 1: D1/CIF/VGA@(1–25/30 fps) Sub stream 2: 1080p/1.3M/720p@(1–25/30 fps)

Bit Rate Control

CBR/VBR

Video Bit Rate

H264: 64 kbps–10496 kbps
H265: 25 kbps–6400 kbps

Day/Night

Auto (ICR)/Color/B/W

BLC

Yes

WDR

120 dB

HLC

Yes

White Balance

Auto/Indoor/Outdoor/Tracking/Manual/Sodium lamp/Natural light/Street lamp

Gain Control

Auto/Manual

Noise Reduction

2D/3D

Motion Detection

Yes

Region of Interest (RoI)

Yes

Image Stabilization

Electronic (EIS)

Defog

Electronic

Digital Zoom

16×

Image Rotation

180°

Privacy Masking

Up to 24 areas can be set, with up to 8 areas in the same view; multiple colors available

S/N Ratio

≥ 55 dB

Audio

Audio Compression

PCM; G.711a; G.711Mu; G.726; MPEG2-Layer2; G722.1; G729; G723

Network

Network Port

RJ-45 (10/100 Base-T)

Network Protocol

FTP; RTMP; IPv6; Bonjour; IPv4; DNS; RTCP; PPPoE; NTP; RTP; 802.1x; HTTPS; SNMP; TCP/IP; DDNS; UPnP; NFS; ICMP; UDP; IGMP; HTTP; SSL; DHCP; SMTP; QoS; RTSP; ARP

Interoperability

CGI;SDK;ONVIF (Profile S&G&T);P2P

Streaming Method

Unicast/Multicast

User/Host

20 (total bandwidth: 64 M)

Storage

Micro SD card (512 GB); FTP/SFTP; NAS

Browser

IE 9 and later versions
Chrome 41 and later versions
Firefox 50 and later versions
Safari 10 and later versions

Management Software

DSS Pro

Mobile Client

iOS;Android

Certification

Certifications

CE: EN55032/EN55024/EN50130-4
FCC: Part15 subpartB, ANSI C63.4-2014

Port

Audio Input

1 channel

Audio Output

1 channel

Alarm Linkage

Capture; recording; send email; preset; pattern; tour; alarm digital input; audio; warning light

Alarm Event

Motion/tampering detection; audio detection; network disconnection detection; IP conflict detection; memory card state detection; memory space detection

Alarm I/O

2/1

Audio I/O

1/1

Power

Power Supply

12 VDC/3 A ± 10%
PoE+ (802.3at)

Power Consumption

Basic: 7.0 W
Max.: 13 W (illuminator+heater+PTZ+speaker)

Environment

Operating Temperature

–40 °C to +65 °C (–40 °F to +149 °F)

Operating Humidity

≤95%

Protection

IP66; TVS 6000 V lightning proof; surge protection; voltage transient protection

Structure

Product Dimensions

269.9 mm × Φ160.0 mm (10.59" × Φ6.30")

Net Weight

2.6 kg (5.73 lb)

Gross Weight

4 kg (8.82 lb)

*****


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SKU: 9861894184

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Lydia
Omaha, US
★★★★★ 5
Outstanding! An absolute must for college students
Format: Paperback
I picked this book up hoping it would prepare me for the job market, which I was already pretty confident about. It was incredibly eye opening, and enlightened me about dozens of things I was overlooking--like using Facebook as my "professional friend" and getting a linkedin account. It was a little stressful seeing how much I could do, but I've been working through the tips one at a time and its really built momentum in my professional brand even as an undergraduate. Now, I have something to do to build my career everyday.
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Reviewed in the United States on February 24, 2012
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Vye
Birmingham, US
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Format: Hardcover
Great book
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Reviewed in the United States on May 12, 2026
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C. Jones
Cuba, US
★★★★★ 5
Made Me Examine My Own Hidden Prisons -- Powerful and Empowering
Format: Hardcover
I was fortunate to read Shaka's book early, and it stands as one of the most profound self-help books I've ever encountered. The experience reminded me of reading MAN'S SEARCH FOR MEANING -- that rare combination of beautiful, raw writing paired with hard-earned wisdom born from lived experience. What sets HOW TO BE FREE apart are the "Digging Deeper" sections at the end of each chapter, which offer straightforward, specific guidance for breaking free from the hidden prisons that keep us from reaching our potential. These aren't vague platitudes; they're practical tools you can actually use. While my privileged upbringing couldn't be more different from the experiences Shaka writes about, I quickly discovered that the hidden prisons he explores -- grief, anger, struggles with forgiveness and vulnerability, etc -- are universal. They affect all of us, regardless of our background or circumstances. As someone who loves introspection, I found myself genuinely engaged in examining my own hidden prisons and what holds me back. The book doesn't just tell you about these barriers -- it makes you want to dig into your own. What his journey gave me wasn't just insight, but confidence. If he could find his version of freedom from solitary confinement, then I have no excuse not to pursue mine. The writing itself is incredible -- authentic, compelling, and beautifully crafted. I'd read anything Shaka wrote. This book doesn't just teach you about freedom; it shows you the path to find your own.
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Reviewed in the United States on September 11, 2025
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Tarrent-Arthur Henry
Carnegie, US
★★★★★ 5
Feeling Stuck in Self-Doubt or Fear? This Book Unlocks the Hidden Prisons Holding You Back!
Format: Hardcover
That’s exactly where I was—stuck in what Shaka calls “Hidden Prisons.” Reading How to Be Free felt like someone handed me the key I didn’t know I already had. This isn’t just another “self-help” book filled with fluffy affirmations. Shaka earned his wisdom the hard way—19 years behind bars, 7 of them in solitary confinement. And yet, out of that darkness, he forged a blueprint for freedom that applies to EVERYONE: CEOs, parents, students, athletes… anyone who’s tired of being stuck. What I loved most? The book doesn’t just inspire—it gives you tools you can actually use. Daily practices like journaling, mindfulness, and meditation aren’t presented as clichés but as lifelines. I tried just one of the exercises and immediately noticed a shift in my mindset. 🔥 My biggest takeaways: Your setbacks can fuel your greatest comebacks. Vulnerability isn’t weakness—it’s power. Protecting your peace is just as important as chasing success. True freedom starts in the mind, long before circumstances change. If you’ve ever battled shame, anger, or the feeling that life is slipping through your fingers—this book is the wake-up call you need. By the time you finish How to Be Free, you won’t just believe change is possible—you’ll have a clear path to living it.
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Reviewed in the United States on September 12, 2025
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Jim C.
Natrona Heights, US
★★★★★ 5
Profoundly powerful.
Format: Audiobook
I found this book incredibly powerful. A clear, courageous guide to living unbound. An invitation to drop inherited scripts based on adopted norms - think of guilt, grind, respectability - and instead find a path to peace, integrity, and self-trust. I'm a big fan of The Artist’s Way, which helped me unlock creative flow, and How to be Free channels that same liberating energy into life as a whole: how we love, work, heal, and show up every day. It includes simple rituals, helpful reflection prompts, and mindset shifts that make room for full, authentic expression. I already have a long list of friends to give this to.
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Reviewed in the United States on September 12, 2025

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