Temperature / Humidity sensor

The basic principle of working of the temperature sensors is the voltage across the diode terminals. If the voltage increases, the temperature also rises, followed by a voltage drop between the transistor terminals of base and emitter in a diode.

A humidity sensor is a device that detects and measures water vapor. ... Based on our robust capacitive technology, these humidity detectors provide accurate measurement of dew point and absolute humidity by combining relative humidity (RH) and temperature (T) measurements.