The USD-A8-1 data acquisition device is designed to convert a signal from eight analog channels to a digital RS-485 standard and for longtime continuous or periodic monitoring.The purpose of the USD-A8 data acquisition device is to convert a signal from eight analog channels to a digital RS-485 standard, longtime continuous or periodic monitoring. Distinctive features: double galvanic isolation - analog and digital; connection of three types of devices: strain gages by half-bridge circuit, strain gages by bridge circuit, active analog devices.