Do you have 2 batteries in your caravan/motorhome, for instance one for the habitation area and one for the motor mover/Motorhomes engine? Want to keep both batteries fully charged? Would like to be able to monitor if your solar panel is charging your batteries? Take the guesswork out of solar charging with this handy controller and remote meter specifically designed for use in Caravans and Motorhomes. This unit will monitor the state of both your batteries simultaneously and relays the information up to 10m away to an easy to use remotely mounted meter. Easy to install and setup it provides up to the minute information about all connected batteries condition up to 10m away. You can even cycle through complete system information at the push of a button. This twin battery charger eliminates the added cost of two separate solar charging systems Battery type selection Charging priority setting PWM charging, frequency option. Protection from over charging, short-circuit, reverse polarity, reverse current to PV. Monitor charging, battery status, solar panel Efficiency,simultaneously