Google’s Pixel 8 Pro, 9 Pro and 9 Pro XL smartphones can already measure the temperature of objects or liquids, but now Google is upgrading the devices’ thermometer app with a feature for reading body temperature. You measure your temperature by holding the phone in front of your forehead and then by both of your temples. Meanwhile, the infrared sensor of the camera system reads your skin temperature on these spots to determine your overall body temperature. For recent Pixel phone owners, the “body temperature” measurement option should appear next to “object temperature” in the Thermometer ap…