Fluke Ti401U Thermal Imager

• IR resolution: 640 × 480 pixels
• Thermal sensitivity (NETD): 75 mK (0.075 °C) at 30 °C
• Temperature measurement range: −20 °C to 1200 °C
• Accuracy: ±2 °C or ±2%, whichever is greater
• Spectral response: 7–14 µm
• Image frame rate: 9 Hz
• Field of view (FOV): 25° × 19°
• Spatial resolution (IFOV): 0.68 mrad
• UltraFocus with automatic, manual, and continuous focusing
• Laser-assisted focusing
• Digital zoom: 1–10×
• 3.5" LCD display, 640 × 480 pixels
• Image modes: Thermal image, Visible image, Picture-in-Picture, and Fusion
• IR-Fusion with adjustable blending from 0–100%
• 13 MP digital camera
• 16 spots, 8 lines, and 12 measurement areas
• Automatic high/low temperature tracking
• Colour and audible temperature alarms
• Voice, text, and label annotations
• QR code scanning for labelling
• Bluetooth 4.2 LE, USB 2.0, and Mini HDMI
• 64 GB Micro SD card as standard, expandable to 128 GB
• SmartView IR software for analysis and report generation
• Ingress protection: IP52
• Designed to withstand a 1 m drop
• Replaceable and rechargeable lithium-ion battery
• Battery life: 2–3 hours
• Weight: 1,215 g
• 2-year warranty

The Fluke Ti401U is a professional thermal imager in the Fluke Classic Ultra Series for thermal inspections, industrial maintenance, and troubleshooting. The camera features an IR resolution of 640 × 480 pixels and a thermal sensitivity of 75 mK for detailed visualisation of temperature differences.

UltraFocus technology provides fast focusing even in complex measurement environments. The camera can automatically focus in as little as one second based on temperature differences and combines this with laser-assisted targeting and continuous autofocus. Manual focusing is also available when greater control over the image is required.

The Ti401U measures temperatures from −20 °C to 1200 °C and provides 1–10× digital zoom for inspecting targets at a distance. Temperature analysis functions include 16 spots, 8 lines, and 12 measurement areas, as well as automatic high and low temperature tracking. Corrections can also be applied for emissivity, ambient temperature, reflected temperature, relative humidity, measurement distance, and IR windows.

The integrated 13 MP digital camera can be combined with the thermal image using IR-Fusion, with an adjustable blending level from 0 to 100%. Picture-in-Picture is also supported, with adjustable infrared window size, position, and blending. Images can be supplemented with voice, text, and label annotations, while QR codes can be used for labelling.

With SmartView IR software for PC, thermal images and measurement data can be analysed and reports generated. The camera features Bluetooth, USB, and HDMI connectivity and includes a 64 GB Micro SD card that can be expanded to 128 GB.

The Ti401U is IP52-rated and designed to withstand a 1 m drop. Its replaceable rechargeable lithium-ion battery provides approximately 2–3 hours of operation, depending on settings and usage.