A newly designed software package drives an electrooptical device that provides a quick and comprehensive evaluation of the properties of nematic materials with positive and negative dielectric anisotropy Δε. The instrument (LCAS) allows for convenient measurement of dielectric properties (ε_l_, εll, Δε), elastic constants (K₁ and K₃), rotational viscosity, resistivity, ion concentration, and voltage holding ratio (VHR) in a single cell as a function of temperature. Results for measurements of several typical nematic materials in a 4 μm cell will be presented and compared with literature data.