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Product Name：METTLER TOLEDO SevenGo Duo pH Meter SG23/SG78/SG98/SG68

METTLER TOLEDO SevenGo Duo pH Meter SG23/SG78/SG98/SG68
  • METTLER TOLEDO SevenGo Duo pH Meter SG23/SG78/SG98/SG68
  • Category：Water Analysis Meters & Electrodes
  • Brand： METTLER TOLEDO
  • Model：SG23/SG78/SG98/SG68
  • Introduction：

    Professional portable watertight (IP67) dual-channel meters with data memory, infrared interface for data transfer to a PC or a printer, bright backlighting and extensive GLP support - ideal for special requirements in regulated sectors or for measurements under extreme conditions.

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  • Description
  • Details
  • Optional Accessories

  • SevenGo Duo pro™

    Professional portable watertight (IP67) dual-channel meters with data memory, infrared interface for data transfer to a PC or a printer, bright backlighting and extensive GLP support - ideal for special requirements in regulated sectors or for measurements under extreme conditions. 

    SevenGo Duo™

    Watertight (IP67) portable dual-channel meters for routine pH measurement with a large display, data memory and indication of the electrode status - ideal for applications that require a high-quality meter with exceptional performance.



  • Product TypeSG23 – SevenGo Duo™ pH/Conductivity
    CalibrationMax. 3 points, 4 predefined buffer groups
    Cond. accuracy± 0.5% maximum value in subrange
    Cond. resolution0.01 ... 1
    Conductivity range0.10 µS/cm ... 500 mS/cm
    DisplayLCD
    Free disk space99 data records
    Operating environment0 ... 40°C; 5 ... 85% relative humidity (no cond.)
    Power supply4 AA batteries 1.5 V or NiMH accumulator 1.3 V
    Resistivity range0.00 ... 100.00 MOhm*cm
    Salinity range0.00 ... 80.00 ppt
    Short descriptionRoutine dual-channel meter for pH, mV/redox, conductivity, salinity, TDS and resistance measurements
    TDS accuracy±0.5% maximum value in subrange
    TDS range0.1 mg/L ... 300 g/L
    TDS resolution0.01 ... 1
    Temperature accuracy °CpH/mV: ±0.5/LF: ±0.2
    Temperature range °CpH/mV: -5.0 ... 105/LF: -5.0 ... 105.0
    Temperature resolution °CpH/mV: 0.1/LF: 0.1
    mV-range-1999 ... 1999
    mV-relative accuracy±1
    mV-resolution1
    pH-range0.00 ... 14.00
    pH-relative accuracy±0.01
    pH-resolution0.01


    Product TypeSG78 – SevenGo Duo pro™ pH/Ion/Conductivity
    CalibrationpH: Max. 5 points, 7 predefined buffer groups
    Cond. accuracy±0.5% maximum value in subrange
    Cond. resolution0.01 ... 1
    Conductivity range0.01 µS/cm ... 1000 mS/cm
    Connection to computerIR interface for printer or PC (via RS232 or USB)
    DisplayDot matrix LCD
    Free disk space500 data records
    Operating environment0 ... 40°C; 5 ... 85% relative humidity (no cond.)
    Power supply4 AA batteries 1.5 V or NiMH accumulator 1.3 V
    Resistivity range0.01 … 100.00 MOhm•cm
    Salinity range0.00 ... 80.00 psu
    Short descriptionProfessional dual-channel meter for the parallel determination of pH, ion concentrations, mV/redox or rel. mV and conductivity, salinity, TDS or specific resistance
    TDS accuracy±0.5% maximum value in subrange
    TDS range0.1 mg/L ... 600 g/L
    TDS resolution0.1 ... 1
    Temperature accuracy °CpH/mV: ±0.2/LF: ±0.1
    Temperature range °CpH/mV: ATC: -5.0 ... 105.0; MTC: -30 ... 130/LF: -5.0 ... 105.0
    Temperature resolution °CpH/mV: 0.1/LF: 0.1
    mV-range-1999.9 ... 1999.9
    mV-relative accuracy±0.1
    mV-resolution0.1
    pH-range-2.000 ... 19.999
    pH-relative accuracy±0.002
    pH-resolution0.1/0.01/0.001


    Product TypeSG98 – SevenGo Duo pro™ pH/Ion/optical Dissolved Oxygen
    CalibrationpH: Max. 5 points, 7 predefined buffer groupsDO: 1 or 2 points
    DO accuracy±0.1 mg/L from 0 ... 8 mg/L±0.2 mg/L from 8 ... 20 mg/L±10% from 20 ... 50 mg/L
    DO range0.0 ... 500%, 0.00 ... 50.00 mg/L
    DO resolution0.1%, 0.01 mg/L
    DisplayDot matrix LCD
    Free disk space500 data records
    Operating environment0 ... 40°C; 5 ... 85% relative humidity (no cond.)
    Power supply4 AA batteries 1.5 V or NiMH accumulator 1.3 V
    Short descriptionProfessional two-channel meter for the parallel determination of pH, ion concentrations, mV/redox or rel. mV and dissolved oxygen (optical RDO® technology)
    Temperature accuracy °CpH: ±0.2DO: ±0.1
    Temperature range °CpH: ATC: -5.0 ... 105.0; MTC: -30 ... 130DO: 0.0 ... 50.0
    Temperature resolution °CpH: 0.1DO: 0.1
    mV-range-1999 9 ... 1999.9
    mV-relative accuracy± 0.1
    mV-resolution0.1
    pH-range-2.000 ... 19.999
    pH-relative accuracy± 0.002
    pH-resolution0.1/0.01/0.001


    Product TypeSG68 – SevenGo Duo pro™ pH/Ion/Dissolved Oxygen
    CalibrationpH: Max. 5 points, 7 predefined buffer groups; DO: 1 or 2 points
    DO accuracy±0.5%
    DO range0.0 ... 600%, 0.00 ... 99.00 mg/L
    DO resolution0.1 ... 1%, 0.01 mg/L
    DisplayDot matrix LCD
    Free disk space500 data records
    Operating environment0 ... 40°C; 5 ... 85% relative humidity (no cond.)
    Power supply4 AA batteries 1.5 V or NiMH accumulator 1.3 V
    Short descriptionProfessional two-channel meter for the parallel determination of pH, ion concentrations, mV/redox or rel. mV and dissolved oxygen
    Temperature accuracy °CpH: ±0.2/DO: ±0.1
    Temperature range °CpH ATC: -5.0 ... 105.0; MTC: -30 ... 130/DO: 0.0 ... 60.0
    Temperature resolution °CpH: 0.1/DO: 0.1
    mV-range-1999 9 ... 1999.9
    mV-relative accuracy± 0.1
    mV-resolution0.1
    pH-range-2.000 ... 19.999
    pH-relative accuracy± 0.002
    pH-resolution0.1/0.01/0.001


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