... , or multi-function 8 ICTRelay output2-way relay outputDisplayDisplay screenSetting frequency, output frequency, current, power, motor speed, load rate, input and ... °C~+40°CRelative humidity<90%, condensation is not allowedProtectionsOverload, instaneous power, phase-off, overvoltage, under voltage, short circuit, over-current, ... -standing Explosion-proof and intrinsically safe AC inverter for mine use