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Handheld Thermal Imaging Camera

Handheld Thermal Imaging Camera - QualiTC™ 25
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Thermal Camera - Thermal Imaging Camera
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Handheld Thermal Imaging Camera - QualiTC™ 25

Handheld Thermal Imaging Camera - QualiTC™ 25 is a high resolution WiFi thermal camera built for electricians, HVAC technicians, and maintenance crews. The device pairs a 320×240 thermal sensor with a 640×480 visible light camera, and wireless transmission sends images straight from the camera to a connected phone or PC. This speeds diagnosis on electrical panels, floor heating systems, plumbing, and power distribution equipment. A measurement range of -20°C to 450°C (-4°F to 842°F) covers most electrical and mechanical inspection tasks.

The QualiTC™ 25 offers outline fusion, overlay fusion, and picture-in-picture modes, letting the operator overlay a thermal reading onto the visible scene for faster fault location. Full-screen hotspot, cold spot, center point, and regional measurement modes give operators several ways to read a scene. An IP54 rating protects the camera from dust and splashing water on active job sites. The camera saves images in TIFF format, which keeps more original image data available for detailed post-capture review.

The QualiTC™ 25 runs on a built-in 4800 mAh lithium battery rated for approximately four hours of continuous use. An operating range of -10°C to 60°C and a storage range of -40°C to 85°C suit most job-site and transport conditions. Eight selectable color palettes and eleven-language support round out a camera built for teams working across different sites and crews. Qualitest built the QualiTC™ 25 for technicians who need sharper detail and fast wireless sharing in one device.

Handheld Thermal Imaging Camera - QualiTC™ 25 Applications

The QualiTC™ 25 combines higher-resolution thermal imaging with wireless transmission and an IP54 rating to handle a wide range of inspection environments. Full-pixel temperature analysis in the included software gives technicians a closer look at a saved image after the site visit.

  • Electrical Inspections and Power Line Failure Detection: locates overheating breakers, connectors, and distribution equipment before they cause outages or fires
  • Floor Heating and Radiant System Diagnostics: traces heating element layout and identifies cold spots or failed zones under flooring
  • Plumbing and Pipeline Leak Detection: reveals moisture patterns and temperature differences behind walls and along pipe runs without demolition
  • Printed Circuit Board Troubleshooting: spots overheating components on a populated board during electronics repair and quality control
  • HVAC and Automotive Repair: checks compressors, coils, and engine components for uneven temperatures that point to a developing fault
  • Building and Property Management: documents insulation gaps, air leaks, and moisture intrusion for real estate and energy audits, with WiFi transfer speeding up report turnaround
Handheld Thermal Imaging Camera

Handheld Thermal Imaging Camera - QualiTC™ 25 Key Features

The QualiTC™ 25 pairs a higher-resolution thermal sensor with wireless connectivity and rugged features built for demanding field work.

  • 320×240 Thermal Resolution: resolves finer detail than entry-level WiFi models for small or distant targets
  • WiFi Image Transmission: sends captured images directly to a connected phone or PC without a physical cable
  • Three-in-One Image Capture: saves the thermal, visible light, and blended image together in a single shot for a complete scene reference
  • IP54 Dust and Water Protection: withstands dusty and splashing job-site conditions without a separate case
  • Full-Pixel Temperature Analysis Software: calculates temperature across every pixel in a saved image, beyond the marked measurement points
  • Outline Fusion, Overlay Fusion, and Picture-in-Picture Modes: places thermal readings in visible context without switching devices
  • 5-Meter Distance Compensation: keeps readings accurate on targets that sit farther from the operator
  • Eight-Color Palette Selection: including Iron Red, White Hot, Black Hot, Rainbow, Red Hot, High Contrast, Green Hot, and Lava, to match the display to the target and lighting
  • 3.5-Inch Display: gives operators a clear view for on-site review of thermal and visible images
  • 4800 mAh Built-In Battery: supports a full shift of field inspection work on a single charge
  • USB Type-C Charging and Data Transfer: charges the camera and moves files to a PC through a single cable

Theory and Method

Every surface above absolute zero emits infrared radiation in proportion to its temperature, and the QualiTC™ 25 captures this energy in the 8 to 14 micrometer long-wave infrared band using a 320×240 microbolometer array. Each detector element changes electrical resistance as it absorbs infrared radiation, and the onboard processor converts that resistance change into a temperature value for every pixel, then renders the result as a false-color thermal image at a 9Hz refresh rate.

A second, 640×480 visible light camera captures a standard photograph of the same scene at the moment of the thermal image. The processor corrects for parallax between the two camera positions and scales the visible image to align with the thermal image pixel for pixel, then saves the thermal, visible, and blended images together so the operator has all three references from a single capture.

Saving images in TIFF format avoids the compression that JPEG applies, so the included Windows analysis software can calculate a temperature value for every pixel in a saved image rather than only the marked measurement points. Distance compensation corrects the calculated temperature for signal loss as infrared energy travels through air, extending accurate readings out to 5 meters from the target.

Handheld Thermal Imaging Camera - QualiTC™ 25 Technical Specifications

ParameterSpecification
IR Resolution320 × 240
Lens4 mm
Wavelength8 to 14 μm
NETD70 mK @ 25°C
Field of View (Thermal)56° (H) × 42° (V)
Visible Light Resolution640 × 480
Visible Light Frame Rate25 Hz
Measurement Range-20°C to 450°C (-4°F to 842°F)
Frame Rate (Thermal)9 Hz
Accuracy±2°C or ±2% of reading, whichever is greater
Temperature Measurement ModesFull-screen hotspot, cold spot, center point, and regional temperature measurement
Temperature CompensationDistance compensation within 5 meters
Image ModesOutline fusion, overlay fusion, picture-in-picture, thermal image, visible image
Color PalettesIron Red, White Hot, Black Hot, Rainbow, Red Hot, High Contrast, Green Hot, Lava
Screen Size3.5 inch
Language SupportEnglish, French, German, Spanish, Russian, Portuguese, Dutch, Arabic, Japanese, Korean, Chinese
InterfaceUSB Type-C (charging and data transfer)
WirelessWiFi image transmission (app and PC software)
LED LightSupported
Ingress ProtectionIP54 (dust and splash resistant)
BatteryBuilt-in lithium battery, 4800 mAh
Working HoursApproximately 4 hours, depending on environment
Operating Temperature-10°C to 60°C
Storage Temperature-40°C to 85°C
Storage Capacity8GB built-in memory (approximately 6.19GB available), stores more than 20,000 images
Image FormatTIFF
Camera Dimensions230 × 100 × 90 mm
Net Weight420 g
Package Dimensions270 × 150 × 120 mm
Gross Weight970 g

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