Sine wave inverter 1.Advanced microprocessor 2.High effciency,good quality,off grid inverter; Sine wave inverter1.strong adaptability and stability;2.AC hardwire terminal block;3.digital voltmeter and power-ration meter;4.short-circuit,over-voltage,under-voltage,over-temperature,over-load protection;5.input and output fully isolated. dc-ac inverter