The DF1641B is a laboratory instrument characterized by high operating stability and multifunctionality. The generation circuit is based on a single integrated function generator circuit, which can provide various output waveforms: sinusoidal, rectangular, triangular, pulse and sawtooth. The functions of the generator are controlled by a microprocessor. The frequency and amplitude of the generated signal are displayed on an LED indicator. Modern design and housing made of high quality materials make the instrument professional looking and mechanically resistant.