256×192 50Hz Thermal Imaging USB Camera Module for Fixed and Low-Speed Monitoring

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256×192 50Hz theral imaging module with −20°C to 150°C temperature measurement, ×2 electronic zoom, USB2.0/UART output and metal housing for fixed monitoring.

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Introduction

SF-YUM256 is a 256×192 thermal imaging module designed for fixed or relatively low-speed observation and temperature-monitoring equipment.

It operates at 50Hz, supports ×2 electronic zoom and provides a −20°C to 150°C temperature measurement range. USB2.0 or UART integration and a standard metal housing make it suitable for OEM devices that need thermal-image or temperature information without requiring the higher resolution and wider measurement range of SF-YUM640.

Applications in Real Devices

Electrical and Equipment Temperature Monitoring

The −20°C to 150°C measurement range is suitable for many general equipment and electrical monitoring tasks where the objective is to identify abnormal heating rather than observe very high-temperature industrial processes.

Low-Speed Automated Equipment

For systems where the target or camera moves slowly, 256×192 at 50Hz provides a practical thermal-imaging direction without automatically moving to the higher-resolution 640×512 configuration.

OEM Thermal Monitoring Terminals

USB2.0 and UART options allow SF-YUM256 to be integrated into thermal monitoring terminals and other embedded equipment according to the host architecture and required data path.

Project Evaluation Guide

Consider This Model When

The device observes a fixed or relatively low-speed scene.
256×192 thermal resolution is sufficient for the target.
The required measurement range stays within −20°C to 150°C.
50Hz thermal output meets the system requirement.
USB2.0 or UART matches the host architecture.
A metal-housed thermal module is preferred.

Confirm Before Sampling

Target size and camera-to-target distance.
Required thermal detail at the actual working distance.
Expected minimum and maximum target temperature.
Required field of view and lens configuration.
USB2.0 or UART integration method.
Installation space and environmental protection requirements.

Choosing This Model Within the Thermal Imaging Camera Module Series

SF-YUM256 is the fixed and low-speed monitoring direction within the Thermal Imaging Camera Module Series.

Choose it when 256×192 resolution, 50Hz output and a −20°C to 150°C measurement range already satisfy the device task. Moving to SF-YUM640 is more appropriate when the project needs significantly more thermal detail, faster-moving platform use or temperatures above 150°C.

Related Models

640×512 Thermal Imaging – SF-YUM640: Consider this model when the project requires higher thermal resolution, operation on faster-moving platforms, temperature measurement up to 550°C or selectable 9mm / 35mm optics.

Key Specifications

Specification	Details
Model	SF-YUM256
Detector Type	Vanadium Oxide Uncooled Infrared Focal Plane Detector
Thermal Resolution	256 × 192
Pixel Pitch	12μm
Frame Rate	50Hz
Spectral Response	8–14μm
NETD	≤50mK @ 25°C; ≤25mK optional
Electronic Zoom	×2
Temperature Measurement Range	−20°C to 150°C
Temperature Measurement Accuracy	±2°C or ±2% of reading, whichever is greater
Temperature Analysis	Point / Line / Area
Interface	USB2.0 / UART
Standard Housing	Metal Housing
Power Supply Range	5–18VDC
Typical Supply Voltage	5VDC

SincereFirst Customization

Lens and Field of View

Lens direction can be evaluated according to the target dimensions, working distance and required scene coverage. Optical selection should be based on how many detector pixels the actual target occupies rather than choosing a wider angle by default.

Temperature Measurement Configuration

The standard page direction uses a −20°C to 150°C measurement range. Temperature-analysis requirements such as point, line or area monitoring can be evaluated according to the device software and monitoring task.

USB2.0 and UART Integration

USB2.0 or UART can be selected according to the host platform and required data flow. Interface communication and software requirements should be confirmed before the device architecture is finalized.

Thermal Image Display Functions

Pseudo-color, polarity, brightness/contrast, image mirroring and electronic zoom requirements can be evaluated according to the operator interface and final observation method.

Final configuration should be validated with the actual host platform, enclosure, optics, software, and lighting environment before sampling.

FAQ

When is 256×192 resolution sufficient?

It is suitable when the thermal target is large enough within the field of view and the application mainly needs temperature distribution or abnormal-heat detection rather than fine thermal detail. Target size and distance should be evaluated together.

Is SF-YUM256 suitable for a fast-moving UAV?

It is positioned primarily for static or low-speed scenes. For faster-moving platforms where more thermal-image detail is required, SF-YUM640 is the more appropriate Series direction.

Does ×2 electronic zoom improve the native thermal resolution?

No. Electronic zoom enlarges the 256×192 thermal image but does not add detector pixels. If the target remains too small in the native frame, lens selection or a higher-resolution detector should be considered.

When should I move from SF-YUM256 to SF-YUM640 because of temperature?

Choose SF-YUM640 when the required target temperature can exceed the 150°C upper limit of SF-YUM256. If the actual application stays within this range, the wider measurement range alone is not a reason to change models.

How accurate is the temperature measurement?

The underlying temperature-measurement specification lists ±2°C or ±2% of the reading, whichever is greater, under its specified ambient conditions. Final accuracy should still be validated in the actual enclosure, target distance and environmental conditions.

Is the standard metal housing suitable for outdoor installation?

The metal housing provides mechanical protection, but the current information does not confirm an IP waterproof or dustproof rating. Outdoor or sealed installation requirements should therefore be evaluated separately.

Evaluate This Module for Your Device

Share your target size and distance, expected temperature range, scene movement, lens/FOV requirement and USB2.0/UART host conditions. SincereFirst can evaluate whether the standard SF-YUM256 configuration matches the device before sampling.