The Goobuy UC-803T 3.9 mm OV9734 USB-C Endoscope Camera Module features a tiny Φ3.9 mm stainless-steel probe and Sony OV9734 1MP sensor to deliver 1280×720@30fps live video for industrial inspection and embedded systems. With USB-C UVC plug-and-play interface, superb access to confined spaces and optional IP67 probe housing, this camera simplifies machine-vision tasks in tight assemblies, process lines and maintenance inspections

 

Product Overview

The Goobuy UC-803T is a tiny diameter inspection probe 3.9mm designed for demanding industrial inspection tasks. Powered by the OV9734 CMOS sensor, it delivers 720p@30fps via USB 2.0 and is fully UVC-compliant, ensuring plug-and-play compatibility with Windows, Mac, Android, and Linux.

Its IP67 inspection camera probe 3.9mm design allows engineers to inspect hard-to-reach locations such as pipelines, HVAC ducts, engines, and electrical cabinets. With optional 4 adjustable LEDs, it provides reliable imaging even in dark, confined environments.

Compared to consumer borescopes, this 3.9mm USB-C industrial endoscope is built for OEMs and system integrators who need stability, ruggedness, and clear documentation for integration into UAVs, robots, and industrial equipment.

 

Why Choose a 3.9mm Probe over Standard 5.5mm/8mm?

• Non-Invasive Medical Use: The sub-4mm diameter is critical for ENT (Ear, Nose, Throat) devices, allowing safe insertion into nasal passages and ear canals with minimal patient discomfort.

• Precision Industrial Access: Fits into diesel injector ports, turbine blade cooling holes, and miniature heat exchangers where standard 5.5mm borescopes get stuck.

• 1/9" Sensor Technology: Utilizing the specialized OmniVision OV9734, it delivers true 720P HD quality in a package size previously limited to low-res analog sensors.

 

Key Advantages & Differentiators

• Unrivalled Access (3.9mm): Its ultra-slim profile allows entry into incredibly small apertures, expanding your inspection capabilities significantly.
• Future-Proof USB-C Design: No more fumbling with connectors – USB-C offers universal compatibility and robust connection with the latest devices.
• Reliable OV9734 Sensor: Engineered for optimal performance in endoscopic applications, providing stable 720P HD video even in low light.
• Instant Visual Feedback: Connect directly to your smartphone, tablet, or laptop for real-time viewing, recording, and sharing of inspections.
• Versatile & User-Friendly: Designed for both professional technicians and eager DIYers, offering powerful features in an easy-to-use package.
• Dedicated Support: Benefit from [Your Brand Name]'s commitment to quality and customer satisfaction with responsive support and guidance.

Industrial Applications (EU/US Focus)

• Pipelines: A rugged industrial pipeline inspection USB camera for oil, gas, and water utilities.
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• HVAC: Reliable HVAC duct inspection USB-C camera to check corrosion, blockage, and leaks.
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• Engines & Machinery: Used as an engine borescope 3.9mm UVC for gearboxes, turbines, and cylinders.
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• Robotics: Integrated as a robot maintenance endoscope camera for tight-space fault detection.
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• UAV Payloads: Works as a UAV inspection endoscope camera USB-C, lightweight for aerial monitoring.
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• Energy Cabinets: Ideal for switchgear or substation panels with confined layouts.
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• Linux & AI Integration: Functions as a mini endoscope camera for Linux UVC with support for OpenCV and GStreamer.

the following is compressed screenshot took by D3.9mm OV9734 USB-C camera in 11.08.2023

what troubling problems Goobuy UC-803T camera can solve in industrial application? 

Problems Solved:

• Accessing Tight and Confined Spaces:
  • Internal inspection of machinery: The ultra-slim 3.9mm diameter allows for visual inspection of complex internal components of engines, turbines, gearboxes, pumps, and other machinery without extensive disassembly, saving significant time and labor.
  • Pipeline and conduit inspection: Navigating narrow pipes, ducts, and conduits to identify blockages, corrosion, cracks, leaks, or foreign objects in plumbing, HVAC systems, or industrial pipelines (e.g., water, gas, chemical lines).
  • Inspecting inaccessible cavities: Reaching into enclosed spaces, behind walls, under floors, or inside structural elements to check for damage, pests, wiring issues, or insulation problems.
  • Retrieving dropped items: The small size, especially when combined with hook or magnet accessories, can help retrieve small parts, tools, or debris that have fallen into hard-to-reach areas, preventing costly damage or disassembly.
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• Non-Destructive Inspection (NDI):
  • Minimizing downtime and damage: By allowing internal inspection without dismantling equipment, the endoscope reduces the need for costly and time-consuming tear-downs and reassemblies, preventing potential damage during the process.
  • Early detection of issues: Identifying minor defects like hairline cracks, early stages of corrosion, wear and tear, or manufacturing flaws before they escalate into major failures, leading to predictive maintenance and reduced repair costs.
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• Visibility in Dark and Low-Light Environments:
  • Illuminating internal spaces: Integrated LED lights provide crucial illumination in dark or poorly lit areas, ensuring clear visibility for accurate inspection. Adjustable brightness helps prevent glare from reflective surfaces.
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• Documentation and Analysis:
  • Visual record-keeping: 720P resolution allows for capturing clear photos and videos of inspections, which are essential for documentation, reporting, quality control, training, and troubleshooting.
  • Real-time monitoring and collaboration: USB-C connectivity enables real-time viewing on a variety of devices (smartphones, tablets, laptops), facilitating immediate analysis and enabling remote collaboration with experts.

Special Demands Met in Industrial Applications:

• Precision and Detail: The 720P resolution with low distortion characteristics ensures sharp, detailed images, which is critical for identifying subtle defects or verifying precise conditions in high-precision manufacturing or complex systems.
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• Versatility Across Industries: Applicable in a wide range of industrial sectors including:
  • Automotive: Engine inspection, chassis, bodywork, and electrical system diagnostics.
  • Aerospace: Inspecting aircraft engines, airframes, and components for safety and maintenance.
  • Manufacturing: Quality control of welds, castings, machined parts, and assembly lines.
  • Energy & Power: Inspection of turbines, generators, pipelines in power plants, oil & gas facilities.
  • HVAC: Checking ducts, vents, and internal components for blockages, mold, or damage.
  • Construction: Inspecting conduits, wall cavities, and structural elements.
  • Plumbing/Sewer: Identifying clogs, leaks, or damage in drainage systems.
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• Portability and Ease of Use: The compact and often lightweight design, combined with USB-C (allowing direct connection to modern devices), makes it highly portable and easy to deploy in various field environments. "Plug-and-play" functionality simplifies setup.
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• Durability and Environmental Resistance: Many industrial endoscopes, including those with this form factor, feature IP67 (or higher) waterproofing for the probe, making them suitable for wet, damp, or dusty environments. Some are also designed to withstand harsh industrial conditions like high temperatures or exposure to certain chemicals (though specific ratings should always be checked).
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• Cost-Effectiveness: Compared to more invasive and expensive inspection methods (e.g., disassembling machinery, using X-rays), this type of endoscope offers a more affordable solution for routine inspections and problem diagnosis.

In summary, the 3.9mm Ultra-Slim 720P OV9734 USB-C Endoscope Camera provides a crucial visual inspection capability for industries where access is limited, precision is paramount, and non-destructive examination is preferred.

 

Model No.	UC-803T
Sensor	CMOS 1/9" 1MP
Resolution	1280*720P@30FPS
Output	USB2.0,USB-A / TYPE-C / Micro USB
FOV	100°
Focus	Fixed
Photo Format	MJPG
White balance	Auto
Light	Without LED, 4 LED can be done
Dimension	Head Steel tube Φ3.9*L20mm
Length of cable	0.5M, 0~3M optional
Power	3.3V / 85mA, 5V optional
Material	Steel shell tube head
System	WIN7/8/10/Android/Apple Mac/Linux
Temperature	0~+65℃

 

Original video screenshot from demo video recorded by this OV9734 USB-C endoscope camera 

Use Scenarios 

• Automotive Diagnostics: Inspect engine cylinders, spark plug holes, internal components, dashboard wiring, and fluid lines without extensive disassembly.
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• Plumbing & HVAC Inspection: Detect blockages, leaks, corrosion, or damage inside pipes, drains, vents, and air ducts.
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• Home & Property Maintenance: Examine behind walls, under floors, in attics, and inside appliances for pests, wiring issues, or structural integrity.
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• Electronics & Circuit Board Repair: Get a magnified view of tiny components, solder joints, and wiring in intricate electronic devices.
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• DIY Projects & Hobbies: Essential tool for model making, crafting, firearm inspection, or exploring hard-to-reach areas in various personal projects.
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• Educational & Scientific Exploration: Ideal for classroom demonstrations, examining small specimens, or basic non-medical research.

Integration Notes

• Fully plug-and-play as a mini endoscope camera for Linux UVC, compatible with OpenCV, GStreamer, and FFmpeg pipelines.
• Cable and connector can be customized for industrial OEM applications.
• Recommended for embedded inspection solutions where space, lighting, and waterproofing matter.

 

Developer Bait
Python

 

# Example: Capturing 720P Endoscope Stream with OpenCV
import cv2

# Initialize Camera (Ensure index is correct for USB camera)
cap = cv2.VideoCapture(1)

# Force 1280x720 Resolution (Native OV9734)
cap.set(cv2.CAP_PROP_FRAME_WIDTH, 1280)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)

while True:
    ret, frame = cap.read()
    # Optional: Rotate image if probe is upside down
    # frame = cv2.rotate(frame, cv2.ROTATE_180)
    cv2.imshow('Endoscope Live View', frame)
    
    if cv2.waitKey(1) == 27: break

 

 

OV9734 USB endoscope camera without metal tube

 

Frequently Asked Questions (FAQ)

Q1. What is the minimum probe diameter and how does it affect fit inside machinery?
The Goobuy UC-803T features a Φ3.9 mm stainless steel probe head and flexible cable; this allows insertion into narrow apertures, hydraulic lines and tight compartments, enabling in-place inspection rather than disassembly.

 

Q2. Can the 1280×720 resolution provide sufficient detail for industrial inspection?
Yes. For many maintenance and inspection tasks—such as checking screw torque, belt wear, foreign object detection or airflow issues—720p at 30fps is sufficient. For finer detail you can focus the probe and stream via OpenCV or record stills.

 

Q3. Does it work on Linux embedded systems such as Raspberry Pi or Jetson?
Yes. The Goobuy UC-803T endoscope module uses USB-C UVC standard and works with Linux (Ubuntu, Debian), Jetson Orin/Xavier/Nano and Raspberry Pi 4/5. Engineers can use OpenCV or GStreamer for live processing or AI integration.

 

Q4. What is the working distance and depth of field for the probe?
The typical working distance is approximately 3–8 cm from the tip of the probe; the field of view is 100°, making it ideal for visualizing internal machine parts at close range.

 

Q5. Is the probe IP67 rated and suitable for industrial environments with dust and occasional water splash?
Yes. The optional IP67 version of the probe is sealed against dust ingress and water up to 1 m for 30 minutes, making it suitable for industrial wash-down zones, coolant spray areas and dusty environments.

 

Q6. What customization options does Goobuy provide for this endoscope camera module?
Goobuy offers OEM customization including cable lengths (0.5m/1m/2m/3m), connector variants (USB-C, Micro-USB, USB-A), optional probe lighting and optional sealed housings. The sensor and resolution remain fixed at OV9734 1MP for stability.

 

Q7: What devices are compatible with this Goobuy OV9734 USB-C endoscope camera?
It is widely compatible with most Android smartphones and tablets that support USB OTG (On-The-Go) functionality, as well as Windows PCs and MacBooks with a USB-C port. (Note: Not compatible with iPhones/iOS devices directly).

 

Q8: What app do I need to use this Goobuy OV9734 camera on my phone/computer?
As a UVC (USB Video Class) compliant camera, it works with various free camera apps. For Android, popular choices include "USB Camera" or "OTG View." For Windows, the built-in "Camera" app often works, or third-party software like "VLC Player."

 

Q9: Does it have a waterproof rating?
The camera tip and flexible cable are typically IP67 waterproof, meaning they can be submerged in water up to 1 meter for 30 minutes. This allows for inspections in wet environments like drains or pipes. (Confirm IP rating if different).

Q10: Can I take photos and record video?
Yes, with a compatible application, you can easily capture still images and record video directly to your connected device for later review or sharing.
   
Q11: do you have other OV9734 version, for example with Independent decoding board?
yes, we have a few version and its VGA model too, you can adjust something free locally

Q12: Can it be used for HVAC inspections?
Yes. It is widely used as an HVAC duct inspection USB-C camera in industrial building maintenance. 
 

Customer Feedback / Comments / Success Stories

• "A Must-Have for Every Mechanic!"
  • "This 3.9mm USB-C endoscope has saved me countless hours on engine diagnostics. The small size gets into impossible places, and the 720P clarity with the OV9734 sensor is fantastic. The USB-C connection is so convenient with my new laptop." - Mike R., Auto Technician, 
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• "Solved My Drain Mystery!"
  • "Had a recurring slow drain, and this camera quickly showed me a clog deep in the pipe. The picture was clear enough to see exactly what it was. So much cheaper than calling a plumber for every little thing!" - Sarah L., Homeowner, 
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• "Invaluable for Electronics Repair"
  • "Working with tiny SMD components requires precision. This endoscope, connected to my tablet, gives me the magnified, illuminated view I need to identify faults and verify solder joints. The small diameter is perfect for navigating cramped circuit boards." - David C., Electronics Hobbyist, 

 

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