There are many types of Temperature Sensors and they are discussed in great detail at our parent website About Temperature & Moisture Sensors
There are descriptions and many technical links to other resources. The site starts with an Index page that lays out the major classifications on the site and the subsections below them.
They are organized by sensor type and vendors of each sensor type.
There are also special pages on Standards, Calibration, Uses and special topics like Emissivity.
It is primarily an informational website with an explanation of the site’s development and objectives.