With many of the IR spectrometers, you will be able to collect data in the field, as some are small enough to be portable, and they can record information. You can also use them in the field by connecting a laptop to them to provide you with faster analysis. Others may want to keep them in the laboratory. Even though there are quite a few different types of infrared spectrometers on the market, they tend to function very similar and have many of the same features. These include easy to use and to understand controls.
When you place your specimen into the device, you will be recording the wavelength and frequency of the IR radiation when it passes through the sample. Different substances will reflect in a manner that is unique for the spectrum, which then makes it possible to identify the sample. It is possible to obtain spectral data from the sample as well. These types of devices tend to have a better overall resolution, a short wavelength limit, and a better signal to noise ratio.