The combination of FT-IR spectroscopy with electrochemistry offers insight in the molecular change during electrochemical reactions in an addition to the electrochemical response of the studied media. This method can be applied for investigations of electrolytes or reactions at electrode surfaces. New accessories for the spectroelectrochemical studies will be presented. Accessories can be configured for the reflection-absorption or for the attenuated total reflectance (ATR) measurements. IR reflection-absorbance spectroscopy (IRRAS) set-up is used for the studies of the electrolyte and the electrode surface while ATR configuration is used to analyze the electrode surface without strong influence of the electrolyte. Optimization of spectroelectrochemical setup and details of communication between the potentiostat and the FTIR spectrometer will be discussed. Example of applications will include electro oxidation of metal-organic complexes, alcohols, and glycerol.