Sensors in a temperature humidity indicator monitor the humidity and temperature of the air. Both values will be represented digitally and translated into the desired unit. The outcome will be shown on a screen or plotted on a graph. Temperature and humidity indicators are often used in labs, warehouses, and instrument rooms, among other places. These humidity indicators measure varying degrees of humidity based on the type. The indicator is multifunctional in that it can take measures, store them in memory, and then send the data to a computer for more in-depth analysis.