4MP, Varifocal Bullet CCTV Security Camera from Acumen,Taiwan
2MP resolution ONVIF protocol support

AiS-G25N-55Y2W, 2MP CCTV Camera

The AiS-G25N-55Y2W is 2MP (1920 x 1080 pixels) IP Security Bullet Camera for Network CCTV Surveillance systems. This camera has varifocal, 2.8-12mm lenses and 50 meter distance Infrared LED light to record high quality video even in low-light areas. It can be installed Outdoor and Indoor 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-G25N-55Y2W IP Security Bullet Camera is compatible with ONVIF protocol, has 2 video streams, 2 way audio (H.264/H.265 and MJPEG compression), 1 alarm port, WDR and 2DNR functions to offer 2 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.


  • IVS 1080P resolution, image clarity, detail
  • 2.8mm-12mm professional 2 megapixel lens
  • Support of 2D / 3D noise reduction, digital wide dynamic function
  • Support of ONVIF and GB / T28181 protocol, can be connected to third-party devices / platforms
  • Variety of cloud technology, network penetration, front and rear side docking alarm information push, and other functions
  • Support of all types of mobile remote monitoring (iOS, Windows Mobile, BlackBerry, Symbian, Android)
  • Multi-browser access (IE, Chrome, Firefox, Safari)
  • Support of web, CMS, center platform management software Ai-CMS, provide SDK Development
  • Support of POE function
  • IVS: motion detection, line crossing, privacy masking
Image sensor

AR0237 1/2.7"

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

2.8mm - 12mm

Lens mount M14
Day/night Support IR-CUT 
Video compression

H.264/H.265 High Profile, JPEG snapshot

Bite rate 32 Kbps~8Mbps
Max. image resolution


Frame rate

50Hz: 25fps (1920*1080), (704*576)

60Hz: 30fps (1920*1080), (704*480)

Image setting Saturation, brightness and contrast are adjustable through IE browser or client software
Storage Network storage
Ports 1 alarm in, 2 audio
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 optional)

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

Network interface 1* RJ45 10M/100M adaptive ethernet port
Motion Detection Yes
Privacy Masking Yes
Line Crossing Yes
Working condition -65℃~65℃, humidity less than 90%( non-condensing)
Power supply 12V DC ± 10%, PoE
Protection range IP67
IR distance 50 meters

73mm x 273mm


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