The REDARC 12- and 24-volt Solar Remote Monitor allows the user to monitor solar panels, battery and system information. This product is only compatible with our 10, 20 and 30A Solar Regulator (SRPA range) REDARC?s 12- and 24-volt Solar Remote Monitor has a large 3? backlit LED display and allows the user to monitor the solar panels, battery and system information to keep track of what the solar panels are producing and state of battery charge. The Solar Remote Monitor provides panel charging information, real time system monitoring and is required for battery setting and configuration setting changes to our range of regulators.