Product Introduction:The testo 875-1i infrared thermal imager features 160 x 120 infrared pixels, with optimized infrared sensitivity to 0.05°C, achieving a minimum focal length of 0.1m. Paired with the rare manual focusing feature in an economical thermal imager, the 875-1i's minimum measurement point reaches 0.99mm. The testo 875-1i is not only suitable for equipment maintenance and inspection but is also a cost-effective infrared thermal imager that is rare in its application for electronic product testing.