... click operation2. System monitor: LCD displays the water quality parameters, temperature, and fault alarm constantly.3. Function setting ... .020.010.02Working ConditionsSourcing water – city tap water,temperature ,5-40°C, sourcing water pressure,1-5Kg/cm2power ... water,surface water ,ground water ,storage water,reservoir watr .can be the source water of BOF upgrading type pure water machine water purifier ...