EP New Tracer3210A 30Amp 12V 24V MPPT Solar charger Controller regulator with LCD+ MT50 meter Advanced MPPT technology,High tracking efficiency no less than 99.5%,Peak conversion efficiency of 98% Ultra-fast tracking speed, Accurately recognizing and tracking of multiple power point Multi-function LCD displays system information intuitively;User programmable for battery types, load control etc. 3-Stage charge with PWM output; Common positive grounding design RS485 port with industrial standard MODBUS open architecture;Fully programmable function via PC software or remote meter