Multi Parameter Water Quality Monitoring System (M-3000) ? Product Overview It is suitable for long-term water quality monitoring with optic probe technology.It has an automatic diagnosis function of debilitating sensor, so it is easy for maintenanceThe accuracy of the data is high.The probe is replaceable in the field ,that provides easy maintenance. ? Product Features -Outer diameter : 8.9 cm Length : maximum 40cm-Communication : RS-232 (SDI 12, RS-485 option)-Memory : 32MB , 64MB(option)-Power Consumption : 12 VDC , 99mA-Operating Temperature : -5°c ~ 75°c ?...