... frequency technology, it can highly reduce product weight and improve efficiency. 2.1 Product features·Modified ... , Grinder, Presser, Weeding machine, Air compressor, etc.·Office and portable equipments: Computer, Printer, Monitor, Copier, Scanner, Digital ... Satellite communication equipment, tec.3. Environmental Conditions Operating Temperature0°C—45°CStorage Temperature-20°C—85°COperating Humidity0%— ...