Distributed dynamic acquisition, high accuracy, low noise, low temperature drift, dual type and dual range, support strain/voltage acquisition, supporting data acquisition software. The TO70B four-channel distributed strain acquisition card is an Ethernet-based dynamic strain acquisition device with four 24 bits resolution synchronous measurement channels, each with a sampling rate of up to 30kS/s. It supports network topology to expand the number of acquisition channels, which can meet the needs of high-precision dynamic measurement, such as dynamic weighing, strain analysis, dynamic force measurement and distributed condition monitoring, etc.