*Professional manufacturer of pressure transducer *More than 15 years experience *ISO9001, CMC, TUV CE *RoSH, CDNV7 ATEX Input4~20mACommunication portRS485Speed300bps~115200bpsOperation frequency850/900/1800/1900MHzCommunication ProtocolDDP protocolAntennaSMA external typePower10~30VDCAccuracy0.1%F.STemperature-40~ 60°c CS-ISN-02/03 series gsm/gprs coordinator