Temperature-measurement sensors are typically thermocouples, RTDs, or thermistors. If the parameter being measured is very sensitive to temperature, placement of the temperature sensor is important.

The sensor is made by Texas Instruments, which calls it a "HDC2010 Humidity and Temperature Digital Sensor," according to TechInsights, a firm that analyses components inside of electronics.

The video indicates that the temperature sensor is the white circle. The 91mobiles report says the sensor is an infrared thermometer and similar to what most contactless thermometers use.