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Inspect electrical systems, mechanical equipment, underfloor heating, building structures, and industrial components with the Mastfuyi Handheld Infrared Thermal Imager. Featuring a listed 320 × 240 thermal detector, 25 Hz refresh rate, wide-angle viewing system, and a temperature-measurement range from approximately -20°C to 550°C, this portable device is designed for fast visual identification of abnormal heat patterns.
The thermal camera supports automatic tracking of maximum, minimum, and centre-point temperatures, adjustable emissivity, high and low temperature alarms, fifteen colour palettes, image capture, laser-assisted positioning, and built-in 4GB storage.
A rechargeable 2,500mAh lithium battery provides more than approximately seven hours of listed operation, while the IP54 enclosure and double-injection-moulded housing support use in demanding inspection environments.
Key Features
- Listed 320 × 240 thermal imaging detector
- 25 Hz thermal refresh rate
- Temperature range from approximately -20°C to 550°C
- Correct Fahrenheit equivalent of approximately -4°F to 1022°F
- Automatic maximum-temperature tracking
- Automatic minimum-temperature tracking
- Centre-point temperature measurement
- Adjustable high and low temperature alarms
- Fifteen thermal colour palettes
- Adjustable emissivity from 0.1 to 1.0
- Recommended measuring distance from approximately 0.3 to 3 m
- Laser-assisted positioning
- Built-in 4GB storage
- Stores thermal images in BMP format
- USB Type-C charging and data connection
- Rechargeable 2,500mAh lithium battery
- More than approximately seven hours operating time
- Approximately three-hour full charging time
- IP54 dust and splash protection
- Listed 1.5 m drop resistance
- Multiple menu languages
- CE, FCC, and RoHS certification, subject to verification
Product Specifications
- Brand: Mastfuyi
- Model Number: Confirm Before Publishing
- Product Type: Handheld Infrared Thermal Imaging Camera
- Thermal Detector Resolution: Listed as 320 × 240 Pixels
- Conflicting Resolution: 240 × 240 Pixels
- Detector Type: Confirm Before Publishing
- Pixel Pitch: Confirm Before Publishing
- Spectral Response: Confirm Before Publishing
- Thermal Sensitivity: Confirm NETD Before Publishing
- Refresh Rate: 25 Hz
- Display Type: TFT True-Colour Display
- Display Size: Between 2.0 and 3.9 Inches
- Display Resolution: Listed as 240 × 240 Pixels, subject to confirmation
- Field of View: Approximately 50° × 50°
- Focus Method: Confirm as Fixed Focus
- Temperature Range: Approximately -20°C to 550°C
- Temperature Range in Fahrenheit: Approximately -4°F to 1022°F
- Temperature Accuracy: Confirm Before Publishing
- Measurement Distance: Approximately 0.3–3 m
- Emissivity Adjustment: 0.1–1.0
- Temperature Measurement Points: Maximum, Minimum, and Centre
- Temperature Alarm: High and Low Threshold Support
- Thermal Palettes: Fifteen
- Laser Positioning: Supported
- Laser Class: Confirm Before Publishing
- Laser Wavelength: Confirm Before Publishing
- Laser Output Power: Confirm Before Publishing
- Image Capture: Supported
- Image Format: BMP
- Internal Storage: 4GB
- Listed Image Capacity: Up to Approximately 30,000 Images
- Video Recording: Confirm Before Publishing
- Computer Connection: Supported
- USB Interface: USB Type-C
- Battery Included: Yes
- Battery Type: Rechargeable Lithium Battery
- Battery Capacity: 2,500mAh
- Operating Time: More Than Approximately Seven Hours
- Charging Time: Approximately Three Hours
- Power Source: Charger
- Protection Rating: IP54
- Drop Resistance: Listed at Approximately 1.5 m
- Housing: Double-Injection-Moulded Body
- Operating Temperature: Confirm Before Publishing
- Storage Temperature: Confirm Before Publishing
- Dimensions: Confirm Before Publishing
- Weight: Confirm Before Publishing
- Languages: Multiple Languages, exact options to be confirmed
- Certifications: CE, FCC, and RoHS, subject to document verification
- Country of Origin: China
Resolution Conflict
The listing contains two different resolution values:
- 320 × 240 thermal pixels
- 240 × 240 pixels
These may represent:
- 320 × 240 thermal detector resolution
- 240 × 240 display resolution
- Two separate model variants
- Incorrect copied specifications
The final listing should clearly separate:
- Native thermal detector resolution
- Internal display resolution
- Saved image resolution
Do not use 320 × 240 and 240 × 240 interchangeably.
Thermal Imaging Detector
The thermal camera is listed with a 320 × 240 infrared detector.
This resolution may support:
- Detection of abnormal heat patterns
- Inspection of electrical connections
- Identification of overheating components
- Underfloor heating analysis
- Building insulation checks
- Mechanical equipment monitoring
- Wider-area thermal surveys
Actual image quality depends on detector type, thermal sensitivity, lens quality, focusing distance, emissivity, ambient conditions, and temperature contrast.
Missing Detector Information
Before publication, confirm:
- Detector material
- Cooled or uncooled design
- Pixel pitch
- NETD thermal sensitivity
- Spectral response
- Detector manufacturer
- Calibration method
- Non-uniformity correction
These specifications are important for accurately evaluating thermal performance.
Temperature-Range Correction
The listed Celsius range is:
- Minimum: -20°C
- Maximum: 550°C
The correct Fahrenheit conversion is approximately:
- Minimum: -4°F
- Maximum: 1022°F
The supplied value of 1832°F is incorrect and should not be published.
Temperature Accuracy
The measurement accuracy is not supplied.
Before publication, confirm accuracy for different temperature ranges, such as:
- Below 0°C
- 0°C to 100°C
- 100°C to 550°C
Also confirm whether accuracy is stated as:
- Fixed degrees
- Percentage of reading
- Whichever value is greater
Temperature accuracy is essential for an industrial thermal camera listing.
Measurement Distance
The listed measurement-distance adjustment is approximately 0.3–3 m.
This likely represents the recommended distance range for temperature correction rather than the maximum distance at which heat can be detected.
Before publication, confirm:
- Minimum focusing distance
- Recommended measurement distance
- Distance correction steps
- Target-size requirements
- Distance-to-spot ratio
- Accuracy at longer distances
Adjustable Emissivity
The thermal camera supports emissivity adjustment from 0.1 to 1.0.
Emissivity settings help compensate for different surface materials.
Common examples include:
- Painted surfaces
- Concrete
- Wood
- Rubber
- Plastic
- Oxidized metal
- Polished metal
Incorrect emissivity settings can cause inaccurate temperature readings.
Automatic Temperature Tracking
The device supports real-time tracking of:
- Highest temperature
- Lowest temperature
- Centre-point temperature
These measurements may help users quickly identify:
- Overheated electrical connections
- Abnormal mechanical friction
- Uneven floor-heating performance
- Insulation problems
- Unexpected hot or cold areas
Confirm whether users can display all measurement points simultaneously.
High and Low Temperature Alarms
Custom temperature thresholds may be configured to provide alerts when a measured value exceeds or falls below a selected limit.
Before publication, confirm:
- Audible alarm
- Visual alarm
- On-screen flashing
- Alarm threshold range
- Separate high and low settings
- Alarm recording in saved images
Fifteen Colour Palettes
The device includes fifteen listed thermal display palettes.
Possible modes may include:
- White Hot
- Black Hot
- Iron Red
- Rainbow
- High Contrast
- Lava
- Medical
- Arctic
- Hot Metal
- Red Hot
Only the palette names included in the final firmware should be published.
Different palettes can help users interpret heat patterns under different inspection conditions.
Wide-Angle Field of View
The listing includes a 50° × 50° field of view.
A wide viewing angle may support:
- Inspection of larger areas at close distances
- Underfloor heating surveys
- Electrical cabinet inspection
- Building checks
- Mechanical equipment analysis
- Faster thermal scanning
Confirm whether the field of view applies to the 320 × 240 detector version.
Display System
The device includes a TFT true-colour display, with the marketplace category indicating a screen size between 2.0 and 3.9 inches.
Before publication, confirm:
- Exact physical screen size
- Display resolution
- Brightness settings
- Viewing angle
- Screen refresh rate
- Automatic timeout
- Image review functions
The display resolution should not be confused with thermal detector resolution.
Laser-Assisted Positioning
The thermal camera includes a positioning laser that may help indicate the approximate measurement area.
Before publication, confirm:
- Laser class
- Wavelength
- Maximum output power
- Operating distance
- Laser activation method
- Whether the laser position aligns with the thermal centre point
The laser does not measure temperature and should not be described as a laser thermometer.
Never point the laser toward eyes, reflective surfaces, vehicles, or aircraft.
Image Capture
A short button press is described as capturing an image.
The camera stores images in BMP format.
Before publication, confirm:
- Saved image resolution
- Whether temperature data is embedded
- Whether measurement points appear in saved images
- File naming structure
- Date and time stamping
- Image review and deletion
- Export procedure
Built-In 4GB Storage
The camera includes 4GB of built-in storage and is advertised as storing up to approximately 30,000 BMP images.
This claim should be verified using:
- Actual saved image resolution
- Average file size
- Reserved system storage
- Embedded measurement data
- File-system overhead
The final available user capacity may be lower than the nominal 4GB.
Computer Analysis
The device can connect to a computer for file transfer and further analysis.
Before publication, confirm:
- Supported operating systems
- Dedicated analysis software
- USB storage mode
- Temperature-data export
- Report generation
- Image annotation
- Firmware update support
Do not advertise professional analysis software unless it is included and documented.
Battery System
The thermal camera includes a rechargeable 2,500mAh lithium battery.
The listed performance includes:
- More than approximately seven hours use
- Approximately three hours for a full charge
- USB Type-C charging
Actual operating time may vary according to:
- Display brightness
- Laser use
- Temperature alarms
- Image capture
- Ambient temperature
- Battery condition
Confirm whether the battery is built in or replaceable.
USB Type-C Interface
The USB Type-C port may support:
- Battery charging
- Image transfer
- Computer connection
- Firmware upgrades
Before publication, confirm:
- Charging voltage
- Charging current
- Charger wattage
- Data-transfer speed
- Operation while charging
- Included cable and adapter
IP54 Protection
The listed IP54 rating indicates that the enclosure may provide:
- Limited protection against dust
- Resistance to water splashes from different directions
IP54 does not mean the camera is:
- Fully dust-tight
- Waterproof
- Submersible
- Suitable for high-pressure water jets
All protective port covers should remain properly closed during use.
Drop Resistance
The housing is listed as withstanding drops from approximately 1.5 m.
Before publication, confirm:
- Test surface
- Number of drops
- Drop directions
- Device operating state
- Lens-protection requirements
- Pass criteria
- Warranty coverage
Operating Environment
The actual environmental operating-temperature range is not supplied.
Before publication, confirm:
- Minimum operating temperature
- Maximum operating temperature
- Storage-temperature range
- Humidity range
- Condensation protection
- Charging-temperature limits
The measurable object-temperature range should not be confused with the device’s own operating-temperature range.
Suitable Applications
The Mastfuyi thermal camera may be suitable for:
- Electrical panel inspection
- Cable and connection checks
- Underfloor heating detection
- Building insulation surveys
- HVAC inspection
- Mechanical equipment monitoring
- Motor and bearing checks
- Petrochemical inspection
- Manufacturing quality control
- Plumbing and water-leak investigation
- Solar-panel inspection
- General industrial maintenance
Actual measurement accuracy depends on emissivity, distance, target size, environmental conditions, and calibration.
Package Contents
Confirm whether the standard package includes:
- Mastfuyi handheld thermal camera
- Rechargeable battery
- USB Type-C charging cable
- Power adapter
- Protective carrying case
- Wrist strap
- User manual
- Calibration documentation
- Analysis software or download instructions
Only verified accessories should appear in the final listing.
Certifications and Warranty
The product is listed with:
- CE certification
- FCC certification
- RoHS compliance
Before publication, verify:
- Certificate numbers
- Testing laboratories
- Exact model coverage
- Applicable standards
- Validity dates
- Brand name shown on documents
The warranty period is not supplied and should be confirmed before publication.
Important Safety Information
Do not point the positioning laser toward people, animals, reflective surfaces, moving vehicles, or aircraft.
Avoid exposing the thermal detector directly to the sun, welding arcs, or intense heat sources beyond the camera’s rated limits.
Use appropriate personal protective equipment when inspecting electrical, mechanical, petrochemical, or high-temperature systems. A thermal camera does not replace proper electrical isolation, lockout procedures, or professional safety testing.