SKU: 38984892245

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

Sale price$303.75 Regular price$337.50
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Description

Dahua 4MP SD4E425GB-HNR-A-PV1 25x Starlight IR WizSense Network PTZ CameraCamera 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 s1 30,000 s Scanning System Progressive Min. Illumination Color: 0. 005 lux@F1. 6 B W: 0. 0005 lux@F1. 6 0 lux@F1. 6 (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

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)

DORI (Detect, Observe, Recognize, Identify) is a standard system (EN-62676-4) for defining the ability of a person viewing the video to distinguish persons or objects within a covered area. The numbers in this table do not reflect intelligent function distances. For intelligent function distances, refer to installation and commissioning manual/project design tool.

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

SMD 4.0

Acupick

Uses deep learning algorithms and works with back-end devices to accurately match targets, such as people and motor vehicles, and search through live and recorded videos to quickly locate targets.

Auto Patrol

It triggers the IVS rule when a target is detected and makes the camera link with the PTZ to rotate to the position of the target and patrol based on its presets.

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: 96 Kbps–14848 Kbps

H265: 38 Kbps–8960 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; DMSS; NVR

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)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 38984892245

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4.6 ★★★★★
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U
Verified Purchase
Ucant wait 2buy
New York, US
★★★★★ 5
Excellent for vacuuming with a great app
Color: White, Size: D20Plus
This thing is just awesome. I gave her name and some googly eyes, and now she is my official cleaning lady. Does a great job with dog hair which was the main reason for the purpose. I was vacuuming all the time. I have hard floors and 3 dogs one of which is a golden retriever that sheds like crazy. The D20 does really great getting up the pet hair along with other stuff in the floor. I have a couple area rugs as well as thick mats in front of the front and back doors, and she does great on both. I definitely make sure to get up any cables or little things like door stops as she will get caught up from time to time. The app works great and does a good job of sending alerts when there is an issue. It lets you know if it’s hung up on something, stick on an edge and if the cleaners are tangled up underneath along with other things. It’s really easy to flip over and take off the brushes to clean them out and untangle them, and easy to put it all back together. You can also schedule her to clean any time of day / night and customize how it cleans certain areas. I prefer to let her run late at night while me and the dogs are sleeping, and she gets the house done in about 90 minutes and covers a lot of ground. She’s also surprisingly quiet for as much as she is picking up. If I’m already awake, I can hear her start to roll around upstairs. But I’ve never been woken up by her, nor have my dogs. I have never used the mop feature as I bought it only for the vacuuming. From what I’ve read it seems there are better options for mopping. But as far as vacuuming goes I am super happy with her! I was vacuuming 3-4 times a week and would usually mop every other week, if ai could get away with it. Now I vacuum and mop once every two weeks, and Dreame does a wonderful job keeping the place clean in between my bi-weekly cleanings. The D20 was a great purchase and a major time and energy saver for me!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
S
Verified Purchase
SF
Dallas, US
★★★★★ 1
Useless
Color: White, Size: D20Plus
Well so far unable to actually use it to see how it works. I have to split my wifi every time I want to use it. It won't charge even when it's on the dock. When I push "charge" on the app it comes off the dock instead of recognizing that it's already on it and proceeds to roam around the house looking for the docking station that it just left. If it can't even find the docking station while sitting on it how can it properly clean the house? I just bought this after returning a defective AirZeen model. Looks like Shark may be the only way to go. Starting yet another return. These are useless
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Reviewed in the United States on March 27, 2026
J
Verified Purchase
Jerry
Port Orchard, US
★★★★★ 5
Great Cleaning Power and Super Convenient
Color: White, Size: D20Plus, Color: White, Size: D20Plus
The DREAME D20 Plus Robot Vacuum and Mop works really well in my apartment. The suction is very strong and easily picks up dust and pet hair from both carpets and hard floors. I also like the self-emptying feature with the large dust bag, which saves me a lot of time. The mapping is accurate, and the battery lasts long enough to clean the whole place. Overall, it’s a great robot vacuum for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
C
Verified Purchase
Chistina
Charlottesville, US
★★★★★ 5
I am very satisfied with the overall experience!
Color: Black, Size: D20Plus, Color: Black, Size: D20Plus
The suction power is really strong. Daily dust, hair and debris can be easily cleaned up, and the ground is obviously much cleaner. Although there are no pets at home, it is enough for daily cleaning. What I like most is its self-dust collection function. The 5L large dust bag has a large capacity and can be used for a long time without dumping garbage. It is really worry-free. It is very friendly to people who do not want to take care of the machine frequently. The drawing is very fast and accurate, and the cleaning route is orderly and will not collide randomly. The APP is easy to operate, and the appointment and remote control are very convenient. Generally speaking, it is very cost-effective, time-saving and effort-saving, and worth buying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
Y
Verified Purchase
yue chen
Draper, US
★★★★★ 5
Good Robot Vacuum
Color: Black, Size: D20Plus, Color: Black, Size: D20Plus
This robot vacuum is really easy to use and very smart. After one cleaning cycle, it can remember the size and layout of the rooms, and it also allows you to choose different rooms for cleaning. It cleans very thoroughly, and when it finishes, it automatically returns to the dock to empty the dust and recharge. It has truly saved me a lot of time and has become a very helpful assistant at home. It also runs fairly quietly, so it does not disturb daily life too much. For people who are busy and do not have much time for housework, it is definitely worth buying.
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Reviewed in the United States on April 7, 2026

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