{"product_id":"handheld-thermal-imager","title":"Handheld Thermal Imager","description":"\u003ch2\u003eHandheld Thermal Imager – QualiTC™ 20\u003c\/h2\u003e\n\u003cp\u003eThe QualiTC™ 20 handheld thermal imager is designed for electricians, HVAC technicians, and building inspectors who need a larger, clearer view during thermal inspections. It combines a 256×192 infrared thermal sensor with a 720P visible light camera and a 3.5-inch display, providing the largest screen in the QualiTC handheld series. This combination helps technicians identify temperature anomalies in electrical panels, floor heating systems, plumbing, power distribution equipment, and mechanical systems. With a temperature measurement range of -20°C to 550°C (-4°F to 1022°F), the QualiTC™ 20 handles a wide range of electrical and industrial inspection tasks.\u003c\/p\u003e\n\u003cp\u003eThe QualiTC™ 20 thermal camera features outline fusion, overlay fusion, and picture-in-picture imaging modes, allowing thermal data to appear alongside the visible scene for faster fault identification. Its 83° × 55° visible-light field of view captures a broad area, making it easier to understand the inspection environment and locate problem areas. Distance compensation supports measurements up to 5 meters, helping maintain reliable temperature readings at common inspection distances. The built-in 8GB memory stores thermal images and video, while USB Type-C connectivity enables file transfer to a PC for analysis and reporting with the included software.\u003c\/p\u003e\n\u003cp\u003eA built-in lithium battery provides approximately four hours of continuous operation, supporting extended inspection sessions without frequent recharging. The camera operates in temperatures from -10°C to 60°C and can be stored from -40°C to 85°C, making it suitable for a variety of job-site and transportation conditions. With eight selectable color palettes and support for 11 languages, the QualiTC™ 20 provides flexible viewing options for technicians working across different locations and teams.\u003c\/p\u003e\n\u003cp\u003eThe QualiTC™ 20 handheld infrared camera combines a high-resolution thermal sensor, visible-light imaging, fusion modes, a large 3.5-inch display, and portable operation in one inspection tool. It is a practical choice for electrical inspections, HVAC diagnostics, building inspections, plumbing checks, floor heating analysis, and power equipment maintenance.\u003c\/p\u003e\n\u003ch2\u003eHandheld Thermal Imager – QualiTC™ 20 Applications\u003c\/h2\u003e\n\u003cp\u003eThe QualiTC™ 20 handheld thermal imager combines 256×192 thermal imaging, 720P visible-light imaging, and a large 3.5-inch display to support fast temperature analysis across electrical, mechanical, HVAC, plumbing, and building inspections. Its wide field of view and 5-meter distance compensation help technicians inspect both nearby components and targets positioned farther away.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eElectrical Inspections and Power Systems: Detects abnormal heat around breakers, connectors, cables, terminals, and power distribution equipment, helping identify potential faults before they lead to equipment damage or unexpected downtime.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFloor Heating and Radiant System Diagnostics: Maps heating element patterns beneath floors and highlights cold areas, uneven heating, and potentially failed heating zones without removing flooring.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePlumbing and Water Leak Detection: Identifies temperature differences and thermal patterns associated with water leaks, damp areas, and moisture behind walls or beneath floors, reducing the need for unnecessary surface removal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMechanical Equipment Monitoring: Helps identify elevated temperatures around motors, bearings, pumps, compressors, and other mechanical components during routine maintenance and equipment inspections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBuilding and Home Inspection: Highlights insulation gaps, thermal bridges, air leakage areas, and moisture-related temperature changes. Visible-light imaging adds scene detail for easier documentation and reporting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower Line and Substation Spot Checks: Supports temperature measurements on electrical equipment positioned farther from the operator, with distance compensation up to 5 meters for inspection tasks involving power distribution and electrical infrastructure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHandheld Thermal Imager – QualiTC™ 20 Key Features\u003c\/h2\u003e\n\u003cp\u003eThe QualiTC™ 20 handheld thermal imager combines high-resolution infrared imaging, 720P visible-light imaging, and a large 3.5-inch display to provide clear thermal data and visual context during electrical, HVAC, mechanical, plumbing, and building inspections.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e3.5-Inch Large Display: Features the largest screen in the QualiTC handheld series for clear viewing and on-site review of thermal and visible images.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e256×192 Thermal Resolution: Provides detailed infrared images that help reveal temperature variations on electrical components, mechanical equipment, pipes, walls, and other inspection targets.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDual Infrared and 720P Visible Cameras: Captures thermal and visible-light images together, making it easier to identify the exact location and surrounding context of potential faults.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOutline Fusion, Overlay Fusion, and Picture-in-Picture Modes: Combines thermal data with visible imagery to provide clearer fault identification without switching between separate devices.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eWide 83° × 55° Visible-Light Field of View: Captures a broader view of the inspection area, helping technicians understand the location and surroundings of the target.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e5-Meter Distance Compensation: Supports temperature measurements on targets located farther from the operator while maintaining reliable measurement performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEight Selectable Color Palettes: Includes Iron Red, White Hot, Black Hot, Rainbow, Red Hot, High Contrast, Green Hot, and Lava, allowing users to select the thermal display style best suited to different inspection conditions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e8GB Built-In Storage: Provides space for storing more than 20,000 images, supporting thermal documentation without requiring external storage media.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eUSB Type-C Charging and Data Transfer: Uses a single USB Type-C connection for charging the thermal imager and transferring captured photos and videos to a PC.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIncluded PC Analysis Software: Enables technicians to review captured thermal images, analyze inspection data, and prepare reports after completing field inspections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTheory and Method\u003c\/h2\u003e\n\u003cp\u003eThe QualiTC™ 20 handheld thermal imager detects infrared radiation emitted by surfaces above absolute zero and converts that energy into temperature data. The camera operates in the 8–14 micrometer long-wave infrared (LWIR) band using a 256×192 microbolometer detector array. Each detector element responds to absorbed infrared energy by changing its electrical resistance. The onboard processor analyzes these changes, calculates a temperature value for each pixel, and converts the data into a false-color thermal image displayed on the large 3.5-inch screen.\u003c\/p\u003e\n\u003cp\u003eAlongside the infrared sensor, the QualiTC™ 20 features a 720P visible-light camera that captures a standard image of the same inspection area. The processor compensates for parallax between the two camera positions and aligns the visible image with the thermal data. This enables three imaging modes: outline fusion, which adds visible-image edges to the thermal image; overlay fusion, which blends thermal and visible images at an adjustable ratio; and picture-in-picture, which places a thermal image window within the visible-light frame. These modes provide additional visual context when locating and documenting temperature anomalies.\u003c\/p\u003e\n\u003cp\u003eThe 5-meter distance compensation feature accounts for changes in infrared signal transmission through the air when measuring targets at greater distances. The QualiTC™ 20 also provides a NETD of 50 mK at 25°C, allowing the thermal sensor to distinguish temperature differences as small as 0.05°C. This sensitivity helps reveal subtle thermal variations and separate abnormal heat from normal background temperature changes during electrical, mechanical, HVAC, and building inspections.\u003c\/p\u003e\n\u003ch2\u003eHandheld Thermal Imager - QualiTC™ 20 Technical Specifications\u003c\/h2\u003e\n\u003ctable class=\"table\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eIR Resolution\u003c\/td\u003e\n\u003ctd\u003e256 × 192\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens\u003c\/td\u003e\n\u003ctd\u003e3.2 mm, F\/1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWavelength\u003c\/td\u003e\n\u003ctd\u003e8 to 14 μm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Algorithm\u003c\/td\u003e\n\u003ctd\u003eTisoView image algorithm set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNETD\u003c\/td\u003e\n\u003ctd\u003e50 mK @ 25°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField of View (Thermal)\u003c\/td\u003e\n\u003ctd\u003e56° (H) × 42° (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisible Light Resolution\u003c\/td\u003e\n\u003ctd\u003e720P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisible Light Field of View\u003c\/td\u003e\n\u003ctd\u003e83° (H) × 55° (V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Range\u003c\/td\u003e\n\u003ctd\u003e-20°C to 550°C (-4°F to 1022°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Rate\u003c\/td\u003e\n\u003ctd\u003e25 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±2°C or ±2% of reading, whichever is greater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Measurement Modes\u003c\/td\u003e\n\u003ctd\u003eFull-screen hotspot, cold spot, center point, and regional temperature measurement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Compensation\u003c\/td\u003e\n\u003ctd\u003eDistance compensation within 5 meters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Modes\u003c\/td\u003e\n\u003ctd\u003eOutline fusion, overlay fusion, picture-in-picture, thermal image, visible image\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor Palettes\u003c\/td\u003e\n\u003ctd\u003eIron Red, White Hot, Black Hot, Rainbow, Red Hot, High Contrast, Green Hot, Lava\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eScreen Size\u003c\/td\u003e\n\u003ctd\u003e3.5 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLanguage Support\u003c\/td\u003e\n\u003ctd\u003eEnglish, French, German, Spanish, Russian, Portuguese, Dutch, Arabic, Japanese, Korean, Chinese\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface\u003c\/td\u003e\n\u003ctd\u003eUSB Type-C (charging and data transfer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eBuilt-in lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Hours\u003c\/td\u003e\n\u003ctd\u003eApproximately 4 hours, depending on environment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-10°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 85°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Capacity\u003c\/td\u003e\n\u003ctd\u003e8GB built-in memory (approximately 6.19GB available), stores more than 20,000 images\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage and Video Format\u003c\/td\u003e\n\u003ctd\u003eImage: JPG; Video: MP4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Qualitest USA LC","offers":[{"title":"Default Title","offer_id":52807730299191,"sku":null,"price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/1859\/1543\/files\/handheld-thermal-imager139909969.webp?v=1786345363","url":"https:\/\/qualitest.us\/pt\/products\/handheld-thermal-imager","provider":"Qualitest USA LC","version":"1.0","type":"link"}