[Courtesy]The standards body has asked owners of thermal guns (non-contact infrared thermometer) to re-calibrate them to improve the accuracy of their readings. The gadgets are used to check temperatures in public places and hospitals in the fight against Covid-19. Erratic measurementsJosephat Bangi, who heads the metrology department at the Kenya Bureau of Standards, said one sign that the thermal gun needs to be re-calibrated is when it becomes ‘erratic’ when giving readings. “When you notice your thermal gun is erratic, and it gives erratic measurements, then it could be time for it to be re-calibrated.”Bangi says while some thermal guns have an upper limit reading of 42 degrees Celsius, some can go to 50. Some manufacturers would recommend after a year but there are no uniform timelines as this depends on the frequency of use.

Source: Standard Digital May 16, 2021 21:22 UTC