The ME-RC remote control allows you to monitor and customize the operating parameters to your Magnum inverter/charger. It is the same remote used on all Magnum inverter/charger models in the ME, MM, MS, and the RD Series lines so there is no cross-platform confusion. The ME-RC50 comes standard with a 50 foot, 4-conductor (twisted-pair) telephone cable and includes non-volatile memory (preserves adjustable settings, even if power to the remote or inverter is removed). The Magnum remote control has all of the programming and operation functions included in an easy-to-use package. Plus Battery monitor unit with cables ( no shunt)