4MP, Varifocal IP Security Bullet Camera from Acumen, Taiwan

AiS-T44N-55N2W,4MP IP Bullet Camera

The AiS-T44N-55N2W is 4MP (2592 x 1520 pixels) IP Security Bullet Camera for Network CCTV Surveillance systems. This camera uses image sensor, varifocal 2.8-12mm lenses and 50 meter distance Infrared LED light to record high quality video even in low-light areas. It has 2 in and 1 out alarm ports and can be useful for Outdoor and Indoor video CCTV security as it has weatherproof protective (IP67) housing for day and night video surveillance. In order to connect with NVRs, this Bullet IP CCTV camera needs the Ethernet cable, which is applied in Network Surveillance systems.

AiS-T44N-55N2W IP Security Bullet Camera is compatible with ONVIF protocol, has 4 video streams, 2 way audio (H.265 / H.264 compression), USB support, RS485 interface, WDR and 3DNR functions to offer 4 megapixel 24/7 outdoor or indoor video streaming. Acumen provides one year manufacturer warranty and free online technical support from Taiwan for this Bullet IP CCTV camera. It needs 12V DC power supply and up to 4W power consumption or Power over Ethernet (PoE) supply to work with CCTV Network Video Recorders.


  • High resolution 4MP、3MP, image presented vivid and clear
  • Support automatic color change/IR-CUT, achieving day and night non-stop monitoring
  • Support various information superimposed (such as: ID、IP、DDNS and so on)
  • Advanced video compression, achieving ultra-low bit-rate, superb high-definition picture qualit. 2 - way audio
  • Support various mobile long-distance monitoring(iPhone, Windows Mobile, BlackBerry, Symbian, Android)
  • Support multiple web browsers (IE、Chrome、Firefox、Safari)
  • Support auto electronic shutter, adapt to different monitoring environment
  • Web and Ai-CMS supporting、central management software
  • Support HVR/NVR connection, support ONVIF 2.0 standard
  • Support POE function
Image sensor 1/3" OV 4689 Low illumination CMOS
Min. illumination


Color 0.01Lux @(F1.2,AGC ON),0 LUX with IR

B/W 0.001 Lux @ (F1.2,AGC ON),0 LUX with IR


Shutter 1/50(1/60)s to  1/10,000 s
Lens HD professional lens  2.8-10mm
Lens mount M14
Day/night Support IR-CUT 
Video compression H.265/H.264,support dual stream, AVI; 1~30f/s variable
Bite rate 32 Kbps~10Mbps
Audio compression G.711a
Max. image resolution


Frame rate

Main stream:4MP 2592*1520@18fps; 3MP 2048*1536@22fps

sub-stream: 1280*720; 704*576 @25fps

Image setting Saturation, brightness and contrast are adjustable through IE browser or client software
Storage Network storage
Intelligent alarm

Motion detection, video loss, cable break, IP address conflicts 

protocol TCP/IP,HTTP,DHCP,DNS,DDNS, PPPoE,SMTP,NTP,(HTTPS,SIP ,802.1x,IPv6  option)

Anti-flicker, dual-stream, heartbeat, password protection 

Network interface 1* RJ45 10M/100M adaptive ethernet port
Audio interface

2 channels

Alarm ports 2 in and 1 out
USB support Yes
RS485 interface Yes
TF Card (Max 32G) Optional
Working condition -65℃~65℃, humidity less than 90%( non-condensing)
Power supply DC12V±10%
Protection range IP67
IR distance “IR3”: 50 meters;
Dimension Φ76mm*296mm
Weight 700 g




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