Check the listing for details. EPEVER 10A/20A/30A/40A MPPT Solar Charge Controller DC12/24V + MT50 Remote Meter. Color: Black, Condition: New. Listed at 121.60 USD. EPEVER 10A/20A/30A/40A MPPT Solar Charge Controller DC12/24V + MT50 Remote Meter MT50 Meter Features:·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 More powerful function Via MT50·Diversified load control modes : manual, light ON/OFF, Light ON+ Timer, Time Control ·Battery type selection: Gel, sealed, flooded and USER type·Real-time monitor ·Programmable parameters ·Energy display function Specifications : Self-consumption : Backlight and acoustic alarm on