RioRand Remote Meter LCD Display (MT50) for Solar Regulator Solar Charge Controller (black) Powered by RioRand advanced technology Automatic identify the controller, and display the type, model and relevant parameter data Large-screen multifunction LCD displays all the operational data and system working status in digital, graphic and textual forms With six navigation function keys, the operation is direct, convenient and rapid Real-time energy statistics recording. Both data and data flowing on the same lead, no need for external power; Real-time monitoring and acoustic alarm of failure information of the controller. Longer communication distance based on RS485.