Using 24-bit high precision AD, all channels synchronous and parallel sampling, with high sampling rate, low noise, high accuracy; Can be equipped with acceleration, velocity, force, microphone and other sensors, the composition of vibration and noise, impact, modal test, structural natural frequency and other test and analysis system; Optional photoelectric isolation input and output digital interface module, read the input digital signal (such as encoder, photoelectric switch, etc.), control the external output; Multiple acquisition devices support multi-machine synchronization.