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Why do my Infrared Thermometer screen shows a “HI” or “LOW” sign?

April 26, 2017infrared screen shows thermometer

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Why do my Infrared Thermometer screen shows a “HI” or “LOW” sign?

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In such cases, your Infrared Sensor or aperture could be damaged by exceeding operating temperature, or the sensors are damage by shocks or drop. This is usually caused by mishandling of equipment. Always read the user manual before any operation.