... and CGC 3.MPPT,Wide voltage 4.Fault diagnose,Monitoring Software ... and good service 8,RS485 /GPRS communication Interface 9,Computer Monitoring Software ... 10,CNCA/CTS 0004-2009,GB 17625.2-GB/T 17626.11 11,Certification of CE,TUV,DK5940 and ... condensingMax. altitude≤2000mDisplay and communicationDisplayLCDStandard CommunicationRS485Optional CommunicationGPRSMechanical ...