The RMS-DCDC is a high precision meter designed for DC-DC MPPT Series onboard battery chargers. Engineered for an aesthetically clean and professional look once mounted, this meter can be flush-mounted and features a backlit LCD. Utilize the 4-key input to navigate through the LCD for system information, configure charging parameters, as well as identify any error codes. The RMS-DCDC is the perfect companion, offering operator feedback on your 2-battery system and keeping you up to date with important system information. Attention: Because this product manual is a general manual, the display logic mentioned on page 18 is temporarily not supported to this product. This remote control screen is only applicable to the situation that the life battery is NON-LITHIUM battery and the generator is a smart generator now.