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ACTi B511A 12MP (4K) IR Indoor Hemispheric Dome IP Security Camera


•Warranty :3-year Manufacturer Warranty
•Technology :Network (IP)
•Camera Style and Manufacturer :IP Dome Cameras, ACTi

$ 992.00 $ 1,340.00

The ACTi B511A Network Dome Camera features a progressive scan CMOS image sensor with a 12MP fixed lens capable of recording footage in 4000 x 3000 (4K) resolution at 18 frames per second. Additionally, the surveillance camera utilizes H.264 compression to efficiently transmit and store data by reducing bandwidth. 130dB wide dynamic range works to automatically adjust brightness and contrast to deliver high-quality, clear footage. Further, the security camera incorporates IR LEDs to capture clear footage at nighttime or during low lighting conditions out to 65ft.

SKU: B511A Categories: , , Tag:



Camera Style

IR Range

Lens Size

Lens Type


Product Type Hemispheric Dome
Maximum Resolution 12MP
Application Environment Indoor
Image Sensor Progressive Scan CMOS
Sensor Size 1/1.7 “
Effective Pixels 4072(H) X 3046(V) (12.4 MP)
Day / Night Yes
Low Light Sensitivity Superior
Minimum Illumination Color: 0.1 lux at F2.8 (30 IRE, 2400 K); B/W: 0 lux at F2.8 (IR LED on)
Color to B/W Switch ISP based switch, configurable
Mechanical IR Cut Filter Yes
IR Sensitivity Range 700-1100nm
IR LED Adaptive IR LED x 12 (850 nm)
IR Working Distance 20m
Electronic Shutter 1/5-1/16000 second (manual mode); 1/5-1/16000 second (auto mode)
Horizontal Resolution (TV Lines) 2250 TVL
S/N Ratio 56 dB


Focal Length Fixed focal, f1.65mm
Aperture F2.8
Iris Fixed iris
Focus Fixed focus
Lens Mount Board mount
Horizontal Viewing Angle 198.5° (overview area)
121.1° (high detail area)
Vertical Viewing Angle 198.5°
(Fisheye View)
Overview, Zoom and Tracking (OZT) technology Yes (Pair of intelligent hemispheric camera with I95, I96, I97, I98 and I915 speed dome camera)


Compression H.264 (Baseline/ Main/ High profile), MJPEG
Maximum Frame Rate vs. Resolution (Fisheye View)
18 fps at 4000 x 3000
30 fps at 2048 x 2048
30 fps at 1600 x 1200
30 fps at 1280 x 960
30 fps at 1024 x 1024
30 fps at 800 x 600
30 fps at 640 x 480
(Dewarped View)
10 fps at 4096 x 2160 (4K Ultra HD)
10 fps at 3840 x 2160 (4K Ultra HD)
30 fps at 1920 x 1080
30 fps at 1280 x 960
30 fps at 1280 x 720
30 fps at 800 x 600
30 fps at 640 x 480
(ePTZ View)
30 fps at 1920 x 1080
30 fps at 1600 x 1200
30 fps at 1280 x 960
30 fps at 1280 x 720
30 fps at 1024 x 1024
30 fps at 800 x 600
30 fps at 640 x 480
30 fps at 320 x 240
View Mode Fisheye View
Dewarped View
270-degree Corner View
Multiple View
ePTZ View
Multi-Streaming Simultaneous triple streams based on three configurations
Bit Rate 128Kbps – 12Mbps (per stream)
Bit Rate Mode Constant, Variable
Wide Dynamic Range Extreme WDR (130 dB)
Image Enhancement White Balance, Brightness, Contrast, Sharpness, Automatic gain control, Flickerless, Defogging
Digital Noise Reduction 2D + 3D DNR
Privacy Mask 8 configurable regions
Text Overlay Yes
Built-in Analytics Object Based Motion Detection, Tampering Detection, Shock Detection, Digital Auto Tracking, Object Line Crossing Detection, Object Enter Area Detection, Missing Object Detection, Unattended Object Detection, Object Loitering Detection
Server-based Analytics Object Line Counting, People Counting, Face Detection, Object Based Motion Detection, Tamper, Object Line Crossing Detection, Object Enter Area Detection, Missing Object Detection, Unattended Object Detection, Smoke Detection, Heat Map, Dwell Time, People Queue Detection, (Require PC-based or standalone IVS or ALPR Server. Contact ACTi support for recommendations on how to maximize analytical accuracy)
Image Orientation Flip, Mirror
IVS performance Certain algorithms may require more computing power, which may limit the number of algorithms that can be concurrently used in the camera. Please test the actual performance before using in a project.


Audio Type 2-way, Built-in Microphone, Mic-in, Line-in, Line-out
Audio Compression 8 kHz, 16 bit encoding, Mono, PCM, G.711


Network Protocol & Service IPv4/v6, TCP, UDP, DHCP, PPPoE, HTTP, HTTPS, DNS, DDNS, NTP, RTP, RTSP, RTCP, SMTP, FTP, IGMP, ICMP, ARP, Bonjour, UPnP, QoS, SNMP, IEEE 802.1X
Ethernet Port 1 x RJ-45 connector
Security IP address filtering, HTTPS encryption, Password protected user level, Anonymous login, IEEE 802.1X network access control

Video Analytics

Analysis Source Type Video
Metadata Accuracy Standard


Event Trigger Video motion detection (10 included and excluded polygons regions), External device through digital input, Sound detection, Intelligent event detection,
Event Response Notify control center, Go to ePTZ preset point or preset tour, Change camera settings, Command other devices, E-mail notification with snapshots, Play the audio file, Push notification to mobile device, Save video to local storage, Save video or snapshot to local storage, Upload video to NVR server, Upload video or snapshot to FTP server, Activate external device through digital output


Unified Solution Fully compatible with ACTi software
Software Development Kit Yes
GPS Position Manual setting
ONVIF Compliant Yes, Profile S, Profile G, Profile T, Profile Q
GB28181 Compliant Yes
Web Browser IE 11
Auto Firmware Upgrade Yes


Audio Interface 1/1, 3.5mm Phone Jack, Built-in microphone
Local Storage MicroSDHC, MicroSDXC Memory Card Slot (card not included, up to 256GB)
Digital Input/Output 1/1 (Terminal block)
Operating Button Reset Button


Power Source PoE Class 3 (IEEE802.3af), DC 12V
Power Consumption 7.17 W (PoE)
Weight 446g (0.983lb)
Dimensions (Ø x H): 149.10mm x 43.00mm (5.9″ x 1.7″)
Environmental Casing No
Mount Type Surface, Gang Box, Flush, Pendant, Converter for NPT Standard Mounts, Tilted Mount, Wall Mount, Pole Mount, Corner Mount
Starting Temperature -10°C ~ 50°C (14°F ~ 122°F)
Operating Temperature -10°C ~ 50°C (14°F ~ 122°F)
Operating Humidity 10% – 85% RH
Approvals CE, FCC, EAC, UL (for optional PoE injector and power adapter)
Real-time Clock (RTC) Yes
Warranty 3 Year(s). For extended warranty offering, see http://www.acti.com/support/warranty

Photo Indication

  1. Memory Card Slot
  2. Reset Button
  3. Digital Input/Output
  4. Audio Output
  5. Audio Input
  6. DC 12V Power Input
  7. Power LED
  8. Ethernet Port
  9. Built-in Microphone

Dimension Diagram

Unit: mm [inch]

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