V-care introduces micro-controller based Bi-polar Digital Voltage source unit which is the new addition to the product range of simulation accessories. The required voltage output can be set by the front panel keys. A 4 -digit display will indicate the set voltage value with a set resolution. This unit operates from 24V DC power input and is housed in a half DIN ABS PLASTIC box. This unit finds its application in simulating field parameters for testing other units like analog input modules that accept voltage input.