86555 AZ Bench Top Water Quality Meter - pH/ORP/Cond./TDS/Salinity Printer features:Multi Display pH, mV, ORP, Conductivity, TDS, Salt & temperature; Automatic buffer recognition to avoid errors during calibration; Maximum 5 points calibration points for pH Benchtop meters; Hold function to freeze the record; Max./Min. review of memorized data; Reliable and replaceable probe with temperature compensation; Auto or manual temperature compensation; Convenient to view calibration information of probe; "Ready" icon on LCD indicates the reading is stable; 99 memories and could be downloaded to PC for analysis; Collect data via RS232 interface by linking with PC; Analog output for chart recorders; Durable electrode holder for left & right side placement; Auto or manual range for conductivity, TDS and salinity measurement Application of 86555 AZ Bench Top Water Quality Meter - pH/ORP/Cond./TDS/Salinity Printer: ¡El 86555 AZ Combo Bench Top Water Quality Meter Printer can measure the pH, ORP (mV), Conductivity, TDS and Salinity. ¡El big LCD screen could be multi display.¡El holder of 86555 AZ Combo Bench Top Water Quality Meter could be fixed either on the right side or the left side of the meter, that design is friendly for different operation.¡El pH and ORP measurement, the sensor electrode should be connected to the BNC port, and the Conductivity /TDS/ Salinity measurement, the sensor electrode should be connected to the MIC port.