CineTreak CT-31K 3G(NDI) / CT-31K 12G(NDI) UHD 4K PTZ Camera


The CineTreak CT-31K is a professional UHD 4K PTZ camera designed for broadcast, live streaming, conferencing, education, and worship applications. Equipped with a 1/1.8″ CMOS sensor, advanced ISP processing, AI auto-tracking, and support for NDI, SDI, HDMI, USB, and IP streaming, it delivers sharp 4K@60fps video with accurate color, smooth motion, and reliable long-distance transmission.

Key Features:

  • 4K UHD resolution up to 3840×2160 at 60fps

  • 12X / 20X / 31X optical zoom lens options

  • Advanced autofocus with face-assisted focusing

  • AI dynamic tracking and intelligent framing

  • Multiple outputs: HDMI, 3G-SDI, optional 12G-SDI, USB, LAN (PoE+)

  • Supports H.264 / H.265 video encoding and AAC audio

  • Network protocols: RTSP, RTMP, SRT, ONVIF, optional NDI|HX, optional Dante AV

  • Built-in MicroSD recording up to 2TB

  • VISCA and Pelco-D/P control via RS-232 / RS-485

  • Ultra-silent PTZ motor with up to 255 presets

  • Tally light, PoE+ support, and low-power standby mode

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This is a brand-new UHD 4K PTZ camera featuring complete functionality, superior performance, and rich video output interfaces. It uses advanced ISP processing algorithms to deliver vivid, high-resolution video with excellent depth and accurate color reproduction. The camera supports H.264/H.265 encoding, ensuring smooth and clear motion video even under low-bandwidth conditions.

  • 4K UHD Image: Equipped with a 1/1.8-inch, 8.42-megapixel high-quality image sensor, supporting a maximum resolution of 3840×2160 with frame rates up to 60 fps.

  • Multiple Optical Zoom Options: Supports 12X, 20X, and 31X optical zoom lenses.

  • Advanced Autofocus Technology: High-performance autofocus algorithms enable fast, accurate, and stable focusing.

  • Low Noise & High Signal-to-Noise Ratio: A low-noise CMOS sensor ensures ultra-high SNR. Advanced 3D noise reduction technology further minimizes noise while preserving image clarity.

  • Multiple Video Output Interfaces: Supports HDMI, 3G-SDI, optional 12G-SDI, USB, and wired LAN (PoE+). SDI supports transmission distances over 100 meters at 1080p60.

  • Multiple Audio & Video Compression Standards: Supports H.264/H.265 video compression and AAC audio encoding, with up to 3840×2160 resolution at 60 fps.

  • Audio Input Interface: Supports AAC audio encoding with sampling rates of 16 kHz, 32 kHz, 44.1 kHz, and 48 kHz.

  • Multiple Network Protocols: Supports ONVIF, GB/T28181, RTSP, RTMP, SRT, FreeD, optional NDI|HX, and optional Dante AV. Supports RTMP push streaming to media servers such as Wowza and FMS, RTP multicast mode, and full VISCA command control over IP.

  • AI Dynamic Tracking: Advanced automatic tracking and intelligent framing using face and human shape recognition, ideal for conference rooms, classrooms, and churches.

  • Face-Assisted Focusing: Uses face detection data to enable faster and more accurate focus performance.

  • MicroSD Card Recording: Supports MicroSD cards up to 2TB for real-time recording in MP4 or TS format.

  • Tally Indicator Light: Red and green indicator lights provide real-time status feedback for standby and live operation, improving multi-camera coordination.

  • Control Interfaces: RS-232 and RS-485 interfaces supported. RS-232 supports cascading for convenient system integration.

  • Multiple Control Protocols: Supports VISCA, Pelco-D, Pelco-P, and automatic identification protocols.

  • Ultra-Silent PTZ Operation: High-precision stepping motors and motor drive controllers ensure smooth, quiet PTZ movement.

  • Low-Power Hibernation Mode: Supports ultra-low-power standby and wake-up, with power consumption below 400 mW in hibernation mode.

  • Multiple Presets: Supports up to 255 presets (10 accessible via remote control).

  • Multi-Directional Infrared Control: Three built-in infrared receivers ensure wide-angle, dead-zone-free control reception.

  • Wide Application Scenarios: Ideal for online education, lecture capture, webcasting, video conferencing, telemedicine, unified communications, emergency command systems, and more.

CineTreak CT-31K 3G (NDI)

Parameter Specification
Image Sensor 1/1.8″ CMOS, 8.42MP
Max Resolution 3840×2160 @ 60fps
Optical Zoom 12X
Digital Zoom 8X
Video Outputs HDMI, 3G-SDI, USB, LAN (PoE+)
Video Encoding H.264, H.265, MJPEG, YUY2, NV12
Audio Encoding AAC
Network Protocols RTSP, RTMP, SRT, ONVIF, NDI
AI Tracking Face & Human Auto Tracking
Pan Range ±170°
Tilt Range -90° to +120°
Presets Up to 255
Control VISCA, Pelco-D, Pelco-P (RS-232/RS-485)
Storage Micro-SD up to 2TB
Ethernet 1000M, PoE+
Power DC 12V, ≤18W
Tally Red / Green
Dimensions 188 × 164 × 236 mm
Weight Approx. 2 kg

CineTreak CT-31K 12G (NDI)

Parameter Specification
Image Sensor 1/1.8″ CMOS, 8.42MP
Max Resolution 3840×2160 @ 60fps
Optical Zoom 20X / 31X
Digital Zoom 8X
Video Outputs HDMI, 12G-SDI, USB, LAN (PoE+)
Video Encoding H.264, H.265, MJPEG, YUY2, NV12
Audio Encoding AAC
Network Protocols RTSP, RTMP, SRT, ONVIF, NDI
AI Tracking Face & Human Auto Tracking
Pan Range ±170°
Tilt Range -90° to +120°
Presets Up to 255
Control VISCA, Pelco-D, Pelco-P (RS-232/RS-485)
Storage Micro-SD up to 2TB
Ethernet 1000M, PoE+
Power DC 12V, ≤18W
Tally Red / Green
Dimensions 188 × 164 × 236 mm
Weight Approx. 2 kg

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