ACTi A421 8MP Face Detection Network Bullet Camera, 4.3x Zoom Lens


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  • Face, people, and car detection
  • 8MP with 4K Ultra HD
  • Day & Night with superior low light sensitivity and adaptive IR LED
  • 4.3x zoom lens with 2.8-12mm, auto focus
  • Extreme WDR
  • H.265 compression
  • Super wide angle


Product Type Zoom Bullet
Maximum Resolution 8MP
Product Application Face, People and Car Detection
Application Environment Outdoor
Image Sensor Progressive Scan CMOS
Sensor Size 1/2.8 “
Effective Pixels 3864(H) X 2192(V) (8.46 MP)
Day / Night Yes
Low Light Sensitivity Superior
Minimum Illumination Color: 0.05 lux at F1.5, B/W: 0.005 lux at F1.5
Mechanical IR Cut Filter Yes
IR LED Adaptive IR LED
IR Working Distance 30m
Electronic Shutter 1/5-1/64000 second (manual mode); 1/5-1/64000 second (auto mode)
Horizontal Resolution (TV Lines) 2000 TVL


Focal Length Zoom, f2.8-12mm
Aperture F1.3
Zoom Ratio 4.3x optical
Zoom Application Camera Installation
Iris Adaptive iris
Focus Auto focus
Lens Mount Board mount
Horizontal Viewing Angle 103.6° – 31.1°
Vertical Viewing Angle 56.8° – 17.4°


Compression H.265, H.264, MJPEG
Maximum Frame Rate vs. Resolution 30 fps at 3840 x 2160 (4K Ultra HD)
30 fps at 2592 x 1944
30 fps at 2048 x 1536
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 720 x 480
30 fps at 640 x 480
30 fps at 320 x 240
Multi-Streaming Simultaneous triple streams
Bit Rate Mode Constant, Variable
Wide Dynamic Range Extreme WDR (130 dB)
Image Enhancement White Balance, Brightness, Backlight compensation (BLC), Contrast, Saturation, Sharpness, Automatic gain control, Flickerless, Digital Image Stabilizer (DIS, EIS), Defogging
Digital Noise Reduction 2D + 3D DNR
Privacy Mask 4 configurable regions
Text Overlay Yes
On-Screen Graphics Yes
Built-in Analytics Tampering Detection, People Detection*, Car Detection*, Face Detection*, People Line Crossing Detection*, People Enter Area Detection*, People Exit Area Detection*, Vehicle Line Crossing Detection*, Vehicle Enter Area Detection*, Vehicle Exit Area Detection*, Object Loitering Detection*
Image Orientation Flip, Mirror, Rotation (Corridor mode)


Audio Type 2-way, Mic-in, Line-in, Line-out
Audio Compression 8 kHz, Mono, G.711 u-law


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 Ethernet (10/100 Base-T), RJ-45 pigtail connector
Security IP address filtering, HTTPS encryption, Password protected user level, Anonymous login, IEEE 802.1X network access control


Event Trigger Video motion detection (3 regions), External device through digital input, Sound detection, Tampering detection
Event Response Notify control center, 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, 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
GPS Position Manual setting
ONVIF Compliant Yes, Profile S, Profile G, Profile T, Profile Q
Web Browser IE 11
Auto Firmware Upgrade Yes


Audio Interface 1/1, Cable with 3.5mm Phone Jack
Local Storage MicroSDHC, MicroSDXC Memory Card Slot (card not included, up to 256GB)
Digital Input/Output 1/1 (Cable with Terminal block), DC Output Voltage: 5V
Operating Button Reset Button


Power Source DC 12V, PoE Class 3 (IEEE802.3af)
Power Consumption 12.95 W (PoE)
Weight 1252g (2.76lb)
Dimensions (W x H x D): 94mm x 80.87mm x 291.16mm (3.70″ x 3.18″ x 11.46″)
Environmental Casing Weatherproof (IP67), Vandal proof metal casing (IK10)
Starting Temperature -20°C ~ 50°C (-4°F ~ 122°F)
Operating Temperature -30°C ~ 50°C (-22°F ~ 122°F)
Approvals CE Class B, FCC Class B, IP67, IK10 (metal casing)
Color White
Real-time Clock (RTC) Yes
Warranty 3 Year(s). For extended warranty offering, see http://www.acti.com/support/warranty
Comments * To be available through future firmware upgrade
SKU: A421 Category: Tag:


Lens Type

Lens Size

Optical Zoom



IP Rating

Camera Style

IR Range

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