Features of 2MP 4X IR Network PTZ Bullet Camera
2MP(1920x1080) resolution
4x optical zoom lens
Built-in SD card slot(up to 64GB)
Protection grade IP66
Infrared: 50 m /164.042ft
Human shape detection, Car shape detection, Non-motor vehicle detection
POE power supply
| Model | ZN-SCB0421V40-ES |
| CAMERA PARAMETER | |
| Image Sensor | 1/2.8" progressive scan CMOS |
| Max. Resolution | 1920 (H)×1080 (V), 2MP |
| Min. Illumination | Color: 0.05 Lux @ (F1.6, AGC ON); B/W: 0.01Lux @ (F1.6 AGC ON), 0 Lux with IR |
| Shutter Speed | 1/25s to 1/30,000s |
| Lens Type | Optical autofocus lens |
| Focal Length | 2.8 to 12mm, 4x optical zoom |
| Aperture | Fixed Iris |
| Day & Night | Day/Night/Auto |
| Focus Mode | Auto/Manual |
| Image Setting | Exposure, White balance, Self-adjusting video modes (Sharpness, Contrast, Saturation, Brightness) |
| Image Orientation | Mirror/Flip |
| BLC | Open/Close |
| WDR | Support |
| Privacy Zone | Support |
| Motion Detection | Support |
| Intelligent Analysid | Human shape detection, Car shape detection, Non-motor vehicle detection |
| PTZ | |
| IR distance | 50 m /164.042ft |
| IR control | Auto/Open/Close |
| Pan Range | Pan: 0° to 250° endless |
| Pan Speed | Pan: 0.5° to 15°/s |
| Tilt Range | Tilt: -10° to 55° |
| Tilt Speed | Tilt: 0.5° to 10°/s |
| Preset Position | 256 |
| Network | |
| Video Compression | H.264 and H.265 encoding, M-JPEG |
| Bit Rate Control | H.265-CBR/VBR |
| ONVIF Protocol | Support |
| Protocols | TCP/IP, UDP, DHCP, NTP, RTSP, PPPoE, DDNS, SMTP, FTP |
| Maximum Frame Rate | 30FPS@(1920x1080) |
| Supported Resolution | 30FPS@(1920x1080,1280x720) |
| Dual-stream | Support |
| User Access | Supports simultaneous monitoring for up to 6 users with multi-stream real time transmission |
| Remote Client Access | NVR connection, Network |
| Ethernet Interface | 1 RJ45 10M/100M self-adaptive Ethernet port |
| On-board Storage | Built-in memory card slot, up to 64 GB |
| General | |
| Power Supply | DC12V±10% |
| POE | Standard |
| Ingress Protection | IP66 |
| Working Temperature | -35°C~+60°C (-31°F~ +140°F) |
| Storage Conditions | 10% ~ 90% |
| Size | 153mm×93mm×130mm(L×W×H) |
| Weight | 0.92kg (2.028 lbs) |


Q: Why choose a bullet-style PTZ like the ZN-SCB0421V40-ES over a dome camera for outdoor surveillance?
A:Bullet PTZ cameras feature an elongated, directional housing that delivers superior long-range zoom and visibility. This makes them ideal for monitoring perimeter areas, entrances, and driveways. Dome cameras, with their more discreet design, typically offer wider coverage but less zoom reach.
Q: How does the visibility of the bullet design serve as a deterrent compared to a dome camera?
A:The visible barrel shape of bullet cameras sends a clear message that the area is being watched, which can deter potential intruders. In contrast, dome cameras are more inconspicuous and better suited to covert surveillance when aesthetics or subtlety are priorities.
Q: Is installation and aiming easier with a bullet PTZ compared to dome models?
A: Yes,bullet cameras typically come with adjustable wall-mount brackets, allowing simple orientation tweaks even after installation. Dome cameras, while sleeker, often require remounting to change view angles.
Q: Which design offers better protection against environmental hazards?
A:Bullet cameras like ZN-SCB0421V40-ES are rugged and sealed for outdoor use, and their direct lens exposure avoids IR reflection issues commonly seen in dome models. Dome cameras may provide better vandal or tamper resistance due to their protective casing, but can be affected by IR bounce-back.
Q: For mid-range targeted monitoring, how does bullet PTZ compare to dome cameras?
A: The ZN-SCB0421V40-ES, with its PTZ capability and optical zoom, excels for detailed tracking of specific zones. Dome cameras, with fixed wide-angle views and less zoom, are better for broad area monitoring—making bullet PTZ preferred for focused surveillance tasks.
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