It is surprising that after being in the RV solar installation business for as long as we have that we still make regular discoveries regarding odd factoring wiring/components or cable routing challenges. Despite these obstacles we are still able to deliver. This client for example, with five 160W solar panels will now be able run a residential refrigerator and power an entertainment center. The Tri-Metric monitor will allow them to view battery status down to the amp-hour and the Bluetooth dongle will send solar charging system data to a smart phone.