The EI7412 by ENDA is a digital display which can be programmed by a digital indicator. This indicator is based on a microcompressor that accepts electric signal and transform it into values. The unit can handle 4 variations of standard inputs having a two relay outputs depending on the requirement values. The user can also set its maximum and minimum capacity value inputs which comes with a 4 digit display. It also uses a switch for easy modification of settings. For its front panel keypad, it is easy to change protection level of 3 on selection of parameter access protection.