  The National Astronomical Research Institute of Thailand (NARIT) has a
manifold network of small telescopes installed worldwide. These telescopes
serve educational and research purposes and are equipped mainly with CCD
detectors for direct imaging and photometry. To extend the possible field of
applications, several telescopes were fitted with commercially available
medium-resolution spectrographs eShel from Shelyak. With these devices,
researchers in NARIT obtained a versatile tool for stellar spectroscopy. Here
we describe the current status of available equipment, possible ways of
upgrading, and briefly introduce the achieved results of the asteroseismologic
study of fast-rotating stars.
