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Yonker YK-IRT4 Infrared Thermometer User Manual — questions & answers

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How do I switch the Yonker YK-IRT4 to body temperature mode? The smiley face icon is not appearing.

2026-10-22 1 answer

Based on the Yonker YK-IRT4 manual, the device is specifically designed for measuring body temperature via the forehead. If the "forehead temperature symbol" (which…

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