Pure sine wave inverter 48V: 1.Advanced DSP,SPWM 2.Automatic Changeover 3.Pure sine wave power inverter 4.Self- ... problems Noise<55dB1mWorkingenviromentTemperature10~ +40humidity0~95%,no condensationAltitude≤1500m,satisfy GB3859.2-93StorageenviromentInverter temperature-40~+65humidity0~95%,no condensationDimension mmW×D×H432 ...