... ; 2.5 Years Warranty ; 3.High quality; 4.Easy to hand New product , Solar Controller (220V-30A/40A/50A) ModelSFS30A-220SFS40A ... )Display contentBattery voltage,PV voltage,PV current,PV powerWorking temperature and humidity range-20~+50°C/35~85%RH ... (no-condensing)Temperature compensation(Optional)4mV/°CCommunication(Optional)RS232,RS485Protectionreverse charging prevention, ...