SKU: 18193247514

DAHUA IPC-HFW2431T-ZAS-S2 4MP Lite IR Vari-focal Bullet Network Camera

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Description

DAHUA IPC-HFW2431T-ZAS-S2 4MP Lite IR Vari-focal Bullet Network CameraIPC HFW2431T ZAS S2 > 4MP, 1 3 CMOS image sensor, low illuminance, high image definition > Outputs 4MP (2560 1440)@25 30 fps, max. supports 4MP (2688 1520)@20 fps > H. 265 codec, high compression rate, ultra low bit rate > Built in IR LED, max IR distance: 60 m > ROI, SMART H. 264+ H. 265+, flexible coding, applicable to various bandwidth and storage environments > Rotation mode, WDR, 3D NR, HLC, BLC, digital watermarking, applicable to various

IPC-HFW2431T-ZAS-S2

> 4MP, 1/3” CMOS image sensor, low illuminance, high image definition

> Outputs 4MP (2560 × 1440)@25/30 fps, max. supports 4MP (2688 × 1520)@20 fps

> H.265 codec, high compression rate, ultra-low bit rate

> Built-in IR LED, max IR distance: 60 m

> ROI, SMART H.264+/H.265+, flexible coding, applicable to various bandwidth and storage environments

> Rotation mode, WDR, 3D NR, HLC, BLC, digital watermarking, applicable to various monitoring scenes

> Intelligent detection: Intrusion, tripwire

> > Abnormality detection: Motion detection, video tampering, no SD card, SD card full, SD card error, network disconnected, IP conflict, illegal ac- cess, local alarm, voltage detection,audio abnormal

> Alarm: 1 in, 1 out; audio: 1 in, 1 out; supports max. 256 GB Micro SD card

> 12V DC/PoE power supply

> IP67 protection ,IK10 protection (optional)


Product Data

Camera

Image Sensor

1/3” 4Megapixel progressive CMOS

Effective Pixels

2688 (H) × 1520 (V)

ROM

128 MB

RAM

128 MB

Scanning System

Progressive

Electronic Shutter Speed

Auto/Manual 1/3 s–1/100000 s

Min. Illumination

0.008 [email protected]

S/N Ratio

>56 dB

Illumination Distance

60 m (196.85 ft)

Illuminator On/Off Control

Auto/Manual

Illuminator Number

4 (IR LED)

Pan/Tilt/Rotation Range

Pan: 0°–360°
Tilt: 0°–90°
Rotation: 0°–360°

Lens

Lens Type

Motorized vari-focal

Mount Type

φ14

Focal Length

2.7 mm–13.5 mm

Max. Aperture

F1.5

Field of View

Horizontal: 104°–27°
Vertical: 55°–15°
Diagonal: 124°–31°

Iris Type

Fixed

Close Focus Distance

0.8 m–0.8 m (2.62 ft–2.62 ft)

DORI Distance

Lens

Detect

Observe

Recognize

Identify

W

64 m

(209.97 ft)

25.6 m

(83.99 ft)

12.8 m

(41.99 ft)

6.4 m

(21.00 ft)

T

220 m

(721.78 ft)

88 m

(288.71 ft)

44 m

(144.36 ft)

22 m

(72.18 ft)

Smart Event

IVS

Tripwire; intrusion

Video

Video Compression

H.265; H.264; H.264B; MJPEG (only supported by the sub stream)

Smart Codec

Smart H.265+/ Smart H.264+

Video Frame Rate

Main stream:

2688 × 1520 (1 fps-20 fps)

2560 × 1440 (1 fps-25/30 fps)

Sub stream:

704 × 576 (1 fps-25 fps)

704 × 480 (1 fps-30 fps)

Stream Capability

2 streams

Resolution

2688 × 1520 (2688 × 1520); 2560 × 1440 (2560 × 1440); 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)

Bit Rate Control

CBR/VBR

Video Bit Rate

H.264: 32 kbps–6144 kbps

H.265: 12 kbps–6144 kbps

Day/Night

Auto(ICR)/Color/B/W

BLC

Yes

HLC

Yes

WDR

120 dB

White Balance

Auto/natural/street lamp/outdoor/manual/regional custom

Gain Control

Auto/Manual

Noise Reduction

3D NR

Motion Detection

OFF/ON (4 areas, rectangular)

Region of Interest(RoI)

Yes (4 areas)

Smart Illumination

Yes

Image Rotation

0°/90°/180°/270° (Supports 90°/270° with 2688 ×1520 resolution and lower.)

Mirror

Yes

Privacy Masking

4 areas

Audio

Audio Compression

G.711a; G.711Mu; G.726

Alarm

Alarm Event

No SD card; SD card full; SD card error; network disconnection; IP conflict; motion detection; video tampering; tripwire; intrusion; illegal access; voltage detection; audio detection; safety exception; local alarm

Network

Network

RJ-45 (10/100 Base-T)

SDK and API

Yes

Cyber Security

Video encryption; firmware encryption; configuration encryption; Digest; WSSE; account lockout; security logs; IP/MAC filtering; generation and importing of X.509 certification; syslog; HTTPS; 802.1x; trusted boot; trusted execution; trusted upgrade

Protocol

IPv4; IPv6; HTTP; TCP; UDP; ARP; RTP ; RTSP; RTCP; RTMP; SMTP; FTP; SFTP; DHCP; DNS; DDNS; QoS; UPnP; NTP; Multicast; ICMP; IGMP; NFS; PPPoE; Bonjour

Interoperability

ONVIF (Profile S/Profile G/Profile T); CGI; P2P; Milestone; Genetec

User/Host

20

Storage

Dahua Cloud; FTP; Micro SD card (support max. 256 G); NAS; SFTP

Browser

IE
Chrome
Firefox

Management Software

Smart PSS; DSS; DMSS

Mobile Phone

IOS; Android

Certification

Certifications

CE-LVD: EN62368-1
CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU
FCC: 47 CFR FCC Part 15, Subpart B
UL/CUL: UL60950-1 CAN/CSA C22.2 No.60950-1-07

Port

Audio Input

1 channel (RCA port)

Audio Output

1 channel (RCA port)

Alarm Input

1 channel In: 5mA 5VDC

Alarm Output

1 channel Out: 300mA 12VDC

Power

Power Supply

12V DC/PoE (802.3af)

Power Consumption

< 9.6W

Environment

Operating Conditions

-30°C to +60°C (-22°F to +140°F)/less than ≤ 95% RH

Storage Temperature

-40°C to +60°C (-40°F to +140°F)

Protection

IP67;IK10(optional)

Structure

Casing

Metal

Dimensions

244.1 mm × Φ90.4 mm (9.61" × Φ3.26")

Net Weight

0.9 kg (1.98 lb)

Gross Weight

1.15 kg (2.54 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: 18193247514

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4.6 ★★★★★
Based on 10 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 4
they work
Color: 03 - Gray, Size: Queen (2 Pillowcases)
I've been searching for cooling pillowcases for a long time. None ever seemed to fit the bill until I found these. Now, let's be clear, they are cool to sleep on for a good amount of time, but you will have to flip them occasionally throughout the night to keep getting that cold feeling. All in all, as a person whose face runs hot when I sleep, these cases have made my nights more bearable, and I do believe they are helping with my skin issues. As far as good value for the money, I think they are a little costly. Color was comparable to the online photo.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
G
Verified Purchase
Gustavo M
Pawtucket, US
★★★★★ 5
Good buy :)
Color: 03 - Gray, Size: Queen (2 Pillowcases)
Can’t go wrong! Silky and cool to touch. Love Beckham
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
N
Verified Purchase
Nita Ragsdale
Draper, US
★★★★★ 5
Great Cooling Pillow Cases
Color: 03 - Gray, Size: King (2 Pillowcases)
Absolutely Awesome! Cooling Pillow Cases help with a great night's sleep. They Feel Great. My husband also enjoys his. Will purchased again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
M
MiamiMommy's Reviews
San Leandro, US
★★★★★ 5
Luxuriously Soft and Packaged Like a High-End Brand
Color: 03 - Champagne, Size: Queen, Color: 03 - Champagne, Size: Queen
I have never owned a 100% silk pillowcase before, especially not at this price point, so I am really glad I was able to experience this one. Even the packaging felt impressive. It was packaged like a luxury brand, which made the whole experience feel special before I even used it. I already had satin pillowcases and thought they were soft, but they do not compare to this mulberry silk pillowcase at all. This pillowcase feels incredibly soft, smooth, and luxurious. I had the satin pillowcases on some of my pillows and this silk one on another, and even in the dark when I turn over during the night, I can immediately tell which pillow has this silk pillowcase on it. The difference is that noticeable. It also has ample room, so you can use a full, fluffy pillow and it will still fit nicely inside the pillowcase. I love the added luxury of the zipper because it keeps the pillow from slipping out, but the zipper is hidden and does not affect the comfort at all. Honestly, this pillowcase put my old flattened pillow to shame. Now I feel like I need to get a new pillow immediately so the pillow can match the quality of the pillowcase. It feels so gentle and smooth against my face, and I love how cool it gets when the air conditioning hits it for a while. For nighttime hot flashes, that cool feeling is such a relief. I also really appreciate that I don't always have to sleep with a satin cap if I don't want to. I have locs, so protecting my hair from lint and dryness is important, but some nights you just want to be completely comfortable without wearing anything on your head. This pillowcase gives me that option while still being gentle on my hair. It also feels better for my skin compared to cotton and other materials because it doesn't seem to soak up all the natural oils from my face. I notice a difference. The only thing I would mention is that while it gives a nice cool feeling at first, it does absorb body heat fairly quickly and can warm up. Even with that, the softness and comfort more than make up for it. I didn't know what I was missing by not having real silk sheets, and now I really crave a full silk sheet and pillowcase set. If they feel anything like this pillowcase, I know that would be some of the best sleep ever. Overall, this pillowcase is soft, luxurious, comfortable, beautifully packaged, roomy, secure with the hidden zipper, and absolutely worth trying.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
J
JustlilOme
Omaha, US
★★★★★ 5
How do I know if this is ....
Color: 02 - Silver Cloud, Size: Queen, Color: 02 - Silver Cloud, Size: Queen
Mulberry Silk comes primarily from silkworms in China who eat white mulberry leaves, leaving a cocoon of spun silk that is used to weave fabric. With so many cheaper versions of mulberry silk, how do I know if this is the real deal? Well, I really do not know if this pillow fabric is 100% silkworm derived. It is not white so there had to be some level of dye added and that colorant is not listed. So, while I cannot confirm the fabric content, I can share how the pillow feels and functions. I have had silk and satin pillows and went back to cotton because organic cotton simply felt better on my face while sleeping. This pillow case is not like other silks, satin, or cotton. The fabric is smooth and soft - it's like sleeping on butter. I woke up this morning with less hair tangle and my face felt cuddled. I washed the pillow case before using it for the first time and the photo of this pillow case on my pillow (next to a red pillow) shows you how this pillow case looks right after being washed and fitted to a queen sized pillow. The only downside to this pillow case is extra care is needed with washing and drying. I washed the pillow case in a mesh bag in cold water and let it hang dry. It's probably not ideal fabric if you have oily skin or go to sleep with makeup because you cannot use harsh detergents to wash this pillow case and you cannot use fabric softener. I tend to wash the rest of my bedding on high heat and dry at high heat to reduce dust mites and other tiny creatures we cannot see on fabric. The zipper is good quality and easy to open and close - at this price point I would have expected a little better design to hide the metal zipper pull - added a photo to show how the metal zipper tab stops about 2 inches from the end of the pillow case with no "tuck-in" feature. The value of this pillow case seems to be fair for a high end product and it makes a nice gift. I don't know anyone who doesn't appreciate buttery soft fabric. There are a ton of pillow cases that claim to be mulberry silk at a fraction of the cost of this pillow case - it's just so hard to know what is authentic and what is not so i can only speak to the fact that this pillow case feels good on my face and doesn't leave me with tangled hair. Hope the photos and the description of my experience with this pillow help you decide if this is the right pillow for you or a loved one. Here's to your comfort!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026

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