Accsoon SeeMo 4K converts the camera’s HDMI signal for one supported iPhone/iPad device. A wired HDMI adapter for iPhone/iPad: UHD 4K30 monitoring, H.264 recording and streaming in Accsoon SEE. It supports UHD 4K30, also 720p, and uses an NP-F550/750/970 battery. The mobile app provides monitoring tools, audio/video recording and Internet streaming. Use the…
Accsoon SeeMo 4K converts the camera’s HDMI signal for one supported iPhone/iPad device. A wired HDMI adapter for iPhone/iPad: UHD 4K30 monitoring, H.264 recording and streaming in Accsoon SEE. It supports UHD 4K30, also 720p, and uses an NP-F550/750/970 battery. The mobile app provides monitoring tools, audio/video recording and Internet streaming. Use the dedicated included Accsoon USB cable; cameras, mobile devices, batteries and HDMI/SDI signal cables are purchased separately. The SD reader transfers files with compatible USB-C iOS devices; it does not record camera video directly to a card.
ACCSOON SEEMO 4K
A wired HDMI adapter for iPhone/iPad: UHD 4K30 monitoring, H.264 recording and streaming in Accsoon SEE.

HDMI-A input accepts UHD 3840 × 2160 up to 30 fps or Full HD up to 60 fps. USB-C VIDEO OUT sends H.264 video to one supported iPhone/iPad. The separate USB-C port supplies 5 V / 3 A to compatible equipment. NP-F power, the battery lock, 1/4″-20 mount and SD reader are shown in the diagram.
The phone clamp separates from the image-processing module for mounting on suitable accessories, including a compatible optional iPad PowerCage. The included cold shoe adapter mounts the supplied assembly to a camera shoe. Phone, camera, cage and NP-F battery are separate equipment.
The Accsoon SEE app turns the supported mobile screen into a monitor with magnification, waveform, histogram, false colour, zebra, focus peaking, LUT, grids, markers, audio levels, overlay, mirror and anamorphic de-squeeze. Display quality and brightness depend on the connected Apple device.
An NP-F550/750/970 battery powers SeeMo 4K. The video connection can supply up to 5 V / 2.4 A to a compatible Lightning or USB-C iPhone/iPad. The separate auxiliary USB-C output is rated 5 V / 3 A. Consumption without connected-device charging is 3 W. The pictured cage, tablet and battery are optional.
Record H.264 up to UHD 30 fps to the iOS camera roll, then edit or share it. RTMP/SRT streaming uses the mobile Internet connection. Set the service address and stream key before going live; LUT and rotation options depend on the current app. The technical symbols in the graphic explain the workflow, rather than promising a localized app interface.
The SD reader transfers files between a card and a compatible USB-C iOS device at USB 2.0 speed. It supports SD/SDHC up to 32 GB and SDXC up to 2 TB. This feature is unavailable with Lightning devices. SeeMo does not record the live camera video directly onto the SD card; recording runs on the mobile device. Card sold separately.
The table compares iOS models: SeeMo has HDMI Full HD60; Pro adds SDI input and loop-out; SeeMo 4K has HDMI UHD30 and an SD reader. IN/OUT means input/output, SD means card reader and the battery symbol means power supply. W is consumption without mobile charging, 1/4″-20 is mount count, mm is body size and g is weight without battery. Original SeeMo does not charge Lightning devices. Click to enlarge the chart.
Numbers in the manufacturer overview identify the following app tools. Availability depends on the current version and connected device.
Use the current Accsoon SEE app and firmware. iOS 12.0 or later is required; manufacturer examples include iPhone 8 and later, iPad generation 6 and later, iPad Pro 9.7/10.5/11/12.9″, Air generation 3 and later and mini generation 5 and later. Available features and smooth 4K performance depend on the connected device.
The Accsoon SeeMo 4K is an innovative interface that transforms your iPhone or iPad into a professional UHD monitor and recorder powered by NP-F batteries. For optimal performance, we recommend accessories for securely mounting your iOS device, a high-quality power solution, and connection cables for video signal transmission.
Power and Charging - Accessories to provide power to the SeeMo 4K and connected iOS devices using the NP-F standard.
Mounting and Attachment - Components for securely attaching the SeeMo 4K to monitors, gimbals, or camera cages.
iPad Cages - Specialized cages that allow you to integrate an iPad as a large production monitor in combination with the SeeMo system.
Cabling and Signal Transmission - High-quality HDMI cables essential for connecting the camera to the SeeMo 4K device input.
Rigs and stabilization - Accessories for expanding your camera setup and capturing smooth footage while monitoring via SeeMo.
Protection and Transport - Durable cases for the safe transport of sensitive electronics and accessories.
| Manufacturer: | Accsoon |
| Category: | Wireless video transmission |
| Power supply | NP-F550 · NP-F750 · NP-F970 |
| Colour | Black |
| Mounting interface | 1/4″-20 |
| Input connector | HDMI type A – female |
| Video codec | H.264 |
| Output connector | USB-C – female |
| Functions | USB-C video output to iPhone/iPad · 3D LUT in Accsoon SEE · Mobile recording in Accsoon SEE · RTMP streaming in Accsoon SEE · SRT streaming in Accsoon SEE · Waveform in Accsoon SEE · False colour in Accsoon SEE · Focus peaking in Accsoon SEE · Recording / stream rotation in Accsoon SEE |
| Mounting interface | Cold shoe adapter |
| Compatible mobile operating system | iOS 12.0 or later |
| Functions | SD card reader for USB-C iOS · Adjustable VBR bitrate · Zebra in Accsoon SEE · Histogram in Accsoon SEE · Framing grids in Accsoon SEE · Anamorphic de-squeeze in Accsoon SEE · Mirror in Accsoon SEE · Image overlay in Accsoon SEE · Image magnification in Accsoon SEE · Vectorscope in Accsoon SEE · Audio level meters in Accsoon SEE · Framing markers in Accsoon SEE · Grayscale in Accsoon SEE · Color range in Accsoon SEE · Screenshot in Accsoon SEE |
| Unit dimensions without antennas | 92x54x46.3mm |
| Weight per unit | 115.7g |
| Maximum transmission resolution | 3840x2160px |
| Maximum frame rate | 60fps |
| Operating temperature | -10x40°C |
| Maximum HDMI Input Resolution | 3840x2160px |
| Maximum HDMI Input Frame Rate | 60fps |
| Maximum wired monitoring devices | 1 |
| USB output voltage | 5V |
| Maximum USB output current | 3A |
| Power consumption without powering the connected device | 3W |
| Phone clamp width range | 65x90mm |
| Number of 1/4″-20 mounting points | 1 |
| Maximum connected mobile device charging current | 2.4A |
| Maximum UHD 4K frame rate | 30fps |
| Maximum SD/SDHC card capacity | 32GB |
| Maximum SDXC card capacity | 2TB |
| Input | HDMI |
| Output | USB-C (video to iOS) |
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