Pure Sine Wave Solar inverter 1, DC: 24V 2, Output: 220Vac, 50Hz/60Hz 3, LCD display 4, With transformer inside Applications: ... currentLCD Human-Machine interfaceInput/output voltage and frequency, battery capacity, loading and etc can be showed on ... discharging current monitor and control. Intelligent battery auto-repair function, extend battery lifespan Model PSI-500PSI-1000PSI-1500PSI-2000PSI ...