... electric system:24V/12V8)wave distort:less then 10% Digital Control panelController Brand: Smartgen, Deepsea,ComApControl Panel: English interface, ... Main Functions:1- Display loading power, voltage, currenct, frequency, speed, temperature, oil pressure, running time etc.2Warning when low ... low or high frequency, over current, over or low speed, low or over battery voltage etc.3Over load protection, ...