11.5 class high level accuracy, quick and accurate measurement, Ac 0?500V range measuring. 2Used for measurement and observation of Ac voltage, to know the current state of the generator at any time. 3White dial and clear printed black character, a button for fine tuning the dial, clear and easy to read scale. 4All meters are equipped with setting adjustment buttons, which have been adjusted before leaving the factory which can be adjusted freely. 5Connect the positive and negative poles to the power cord, install the meter in the central control position, or in other places where you need it to detect the current. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia