Can I use the Microlife ear thermometer while travelling in a car or ambulance car? Do cold temperatures during winter affect readings?

Yes, but please note that the operating temperature has to be between 10°C and 40°C (50°F and 104°F)! As long as the thermometer itself is outside this range no measurements can be performed. In this case, the display shows “L” or “H”. It will take considerable time to return the thermometer to its working temperature range.