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Dahua Pinhole IP 2MP 2.8mm – video surveillance camera IPC-HUM4231S-L4-S3 supports intelligent functions, such as tripwire and intrusion, and provides clear details in high contrast brightness environments.
Dahua Pinhole IP 2MP 2.8mm – video surveillance camera IPC-HUM4231S-L4-S3 supports intelligent functions, such as tripwire and intrusion, and provides clear details in high contrast brightness environments. The light and dark area can achieve sharp video even in high brightness or backlight shadow environments. Dahua IPC-HUM4231S-L4-S3 allows ±30% input voltage tolerance and is widely applicable in outdoor environments with unstable voltage.
The video surveillance camera also uses a number of advanced features including security authentication and authorization, access control protocols, trust protection, and encrypted transmission and storage. These technologies improve the camera’s defense against external cyber threats and prevent malicious programs from accessing the device.
Image Sensor | 1/3″ CMOS |
Max. Resolution | 2MP 1920 (H) × 1080 (V) |
ROM | 128 MB |
RAM | 128 MB |
Scanning System | Progressive |
Electronic Shutter Speed | Auto/Manual 1/3 s–1/100,000 s |
Min. Illumination | 0.01 [email protected] (Color, 30 IRE) 0.001 [email protected] (B/W, 30 IRE) |
S/N Ratio | >56 dB |
Alarm Event | Network disconnection; IP conflict; illegal access; motion detection; video tampering; tripwire; intrusion; audio detection; voltage detection; security exception |
Port | Audio Input: 1 channel (RCA port) Audio Output: 1 channel (RCA port) |
Certifications | CE-LVD: EN62368-1; CE-EMC: Electromagnetic Compatibility Directive 2014/30/EU; FCC: 47 CFR FCC Part 15, Subpart B |
Power Supply | 12 VDC Basic: 1.2 W (12 VDC) Max. (H.265 + intelligence on + WDR): 1.56 W (12 VDC) |
Type | Fixed-focal |
Mount | M12 |
Focal Length | 2.8 mm |
Aperture | F 2.0 |
Field of View | Horizontal: 96°; Vertical: 55°; Diagonal: 110° |
Iris Control | Fixed |
Close Focus Distance | 0.8 m |
DORI Distance | 2.8 mm lens Detect: 61.0 m Observe: 24.4 m Recognize: 12.2 m Identify: 6.4 m |
IVS | Intrusion; tripwire |
Compression | Video: H.265; H.264; H.264B; MJPEG (Only supported by the sub stream) Audio: G.711a; G.711Mu; PCM; G.726 |
Smart codec | Smart H.265+ Smart H.264+ |
Video Frame Rate | Main stream:1920 × 1080 @(1–25/30 fps ) sub stream: 704 × 576 @ (1–25 fps)/704 × 480 @(1–30 fps) *The values above are the max. frame rates of each stream; for multiple streams, the values will be subjected to the total encoding capacity. |
Stream Capability | 2 streams |
Resolution | 1080p (1920 × 1080) 1.3M (1920 × 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: 3 kbps–6144 kbps H.265: 3 kbps–6144 kbps |
Day/Night | 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) | 4 areas |
Image Rotation | 0°/90°/180°/270° (Support 90°/270° with 1080P resolution and lower) |
Mirror | Yes |
Privacy Masking | 4 areas |
Network port | RJ-45 (10/100 Base-T) |
SDK e 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 T); CGI; P2P; Milestone |
User/Host | 20 (Total bandwidth: 48 M) |
Storage | FTP; SFTP; NAS |
Browser | IE Chrome Firefox |
Management Software | Smart PSS DSS DMSS |
Mobile Client | iOS Android |
Material | Metal |
Color | Black |
Dimensions | 3.1 x 3.1 × 3 cm |
Weight | 0.81 kg |
Operating Temperature | –40 °C – +60 °C /Less than 95% RH |
Operating Humidity | ≤95% |
Storage Temperature | –40 °C – +60 °C |
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Absolutely happy I discovered this shop. The team were very responsive on whatsapp and even I hopped on a phone call so they help me a bit with my choices. They were very happy to help and they really know their products. I ordered several profoto products and they helped me make sure they are what I need. I live abroad so they helped me find the lower prices for shipping. I HIGHLY recommend them. As of now I will shop gear with them!
This is a great store: large stock of professional gear, good prices, prompt communication via email / WhatsApp. The dispatch of the order was speedy, and the item arrived super quick in a well-thought packaging. All in all, a warmly recommended new young store, standing out for its remarkable service. Keep up the good work!
First time I bought equipment from them, nothing to complain, professional staff and kindness. The equipment was in perde condition and I received a pretty quick email about when to go to pick up my goods. Excellent experience
Evething was perfect for a fast delivery to Belgium. Communication is easy and fast on what’s app. Thank you.
It was my first order at Martcom and I was a little afraid, but the order arrived quickly and at a much better price than at other stores. Although it was a problem with a missing product, the problem was solved by email within a few hours, and the missing product was sent with the fastest DHL shipment. Thanks for the seriousness and I will be back with other orders soon. I highly recommend!
I’ve made purchase from this company a couple of times and found them to be highly reliable, well priced and stocked and easy to contact. Their ‘chat now’ really works (so many web sites offer this, only to disappoint) and the responses are fast and full, so need need to keep going back. I think this is a very good company, with a great catalogue of quality gear (esp their range of Kupo products) and so much of it seems to be in stock which is often not the case, especially here in the UK where since leaving the EU (regrettably) we seem to be suffering huge stock delays. So I am happy to recommend Martcom.
I recommend them! Very friendly and professional, they respond quickly to any concerns related to your purchase, or your future purchase!
I ordered Angelbird CFExpress cards (which were not available anywhere in the U.S.) and Martcom was able to find stock and sending me some, which I could not be happier about. Customer service was very fast and helpful, as I received regular updates about my item’s availability. Thank you Martcom!
just bought from Martcom, payment via Paypal, package sent via DHL, received in 4 days in France, excellent package, material in new mint conditions and prices super attractive. They have a big stock in Kupo accessories and that’s quite rare in Europe. I recommend Martcom !
Ottimi prodotti, grazie a loro ho scoperto il marchio Kupo ed E-Image che sono prodotti di primissima qualità! Se siete a Milano potete andare a fare il ritiro gratuito in sede e farvi dare qualche consiglio, ma occhio a non comprare tutto il magazzino :) Affidabili e consgiliato
Immediately very kind and available for any clarification. Competent and professional from every point of view, ready to advise and help, to remove any doubts about the use or choice of the equipment you need. I will definitely come back to buy in the store from them or if necessary to rent.
Company very responsive to requests for information. Very fast order processing and international delivery without any problems. I recommend it !
Very well assorted stock of items related to photo and video. Reasonly low priced. God my Smallrig 55′ parabolic defuser very fast delivered to northern Norway. Carefully packed and no damage. I just found this internet store, Martcom, and I think they can match BHPhoto(US) and EU stores in good service and reability. I’ll be back!
ordering was easy and they were the only place in europe to have the camera in stock. posted to the U.K. without any problem.
Deliveries 24/48 hours
Milan store
Easy and secure
Pre and post sales