... requiredMinimum Diameter of Touch Object8mmOptical ParameterLight Transmission≥95%, Max =100%Environmental ParameterTemperatureWorking Temperature 0°C ~55°CStorage Temperature - ... SystermSupport Windows XP,vista,windows 73,Provide built-in and external two different scheme, easily satisfy different customers' ... win7,linux,mac;10,Support both of inside and outside environment workable. 46" LCD Monitor