... and true sine wave UPS Inverter ups oustanding features :1. Wide Input Range (110-300VAC) to avoids ... (line normal, according to line) 50Hz±1%(line abnormal)Dynamic voltage transient range<5%Dynamic transient restore< 60msWaveformSine ... LED PanelI/P Voltage, I/P& Frequency,Battery voltage,UPS status, load, temperature,O/P Voltage,Frequency, B/P Voltage,Frequency CommunicationsRS232,Intelligient Slot ...