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Product Name：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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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 Type	SG23 – SevenGo Duo? pH/Conductivity
Calibration	Max. 3 points, 4 predefined buffer groups
Cond. accuracy	± 0.5% maximum value in subrange
Cond. resolution	0.01 ... 1
Conductivity range	0.10 μS/cm ... 500 mS/cm
Display	LCD
Free disk space	99 data records
Operating environment	0 ... 40°C; 5 ... 85% relative humidity (no cond.)
Power supply	4 AA batteries 1.5 V or NiMH accumulator 1.3 V
Resistivity range?	0.00 ... 100.00 MOhm*cm
?Salinity range	0.00 ... 80.00 ppt
Short description?	Routine dual-channel meter for pH, mV/redox, conductivity, salinity, TDS and resistance measurements
?TDS accuracy	±0.5% maximum value in subrange
TDS range?	0.1 mg/L ... 300 g/L
?TDS resolution	0.01 ... 1
Temperature accuracy °C?	pH/mV: ±0.5/LF: ±0.2
?Temperature range °C	pH/mV: -5.0 ... 105/LF: -5.0 ... 105.0
Temperature resolution °C?	pH/mV: 0.1/LF: 0.1
mV-range?	-1999 ... 1999
mV-relative accuracy?	±1
mV-resolution?	1
pH-range?	0.00 ... 14.00
pH-relative accuracy?	±0.01
pH-resolution	0.01

Product Type	SG78 – SevenGo Duo pro? pH/Ion/Conductivity
Calibration	pH: Max. 5 points, 7 predefined buffer groups
Cond. accuracy	±0.5% maximum value in subrange
Cond. resolution	0.01 ... 1
Conductivity range	0.01 μS/cm ... 1000 mS/cm
Connection to computer	IR interface for printer or PC (via RS232 or USB)
Display	Dot matrix LCD
Free disk space	500 data records
Operating environment	0 ... 40°C; 5 ... 85% relative humidity (no cond.)
Power supply?	4 AA batteries 1.5 V or NiMH accumulator 1.3 V
?Resistivity range	0.01 … 100.00 MOhm?cm
Salinity range?	0.00 ... 80.00 psu
Short description?	Professional 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 range?	0.1 mg/L ... 600 g/L
TDS resolution?	0.1 ... 1
?Temperature accuracy °C	pH/mV: ±0.2/LF: ±0.1
Temperature range °C?	pH/mV: ATC: -5.0 ... 105.0; MTC: -30 ... 130/LF: -5.0 ... 105.0
?Temperature resolution °C	pH/mV: 0.1/LF: 0.1
mV-range?	-1999.9 ... 1999.9
?mV-relative accuracy	±0.1
mV-resolution?	0.1
?pH-range	-2.000 ... 19.999
?pH-relative accuracy	±0.002
pH-resolution	0.1/0.01/0.001

Product Type	SG98 – SevenGo Duo pro? pH/Ion/optical Dissolved Oxygen
Calibration	pH: 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 range	0.0 ... 500%, 0.00 ... 50.00 mg/L
DO resolution	0.1%, 0.01 mg/L
Display	Dot matrix LCD
Free disk space	500 data records
Operating environment	0 ... 40°C; 5 ... 85% relative humidity (no cond.)
Power supply	4 AA batteries 1.5 V or NiMH accumulator 1.3 V
Short description?	Professional two-channel meter for the parallel determination of pH, ion concentrations, mV/redox or rel. mV and dissolved oxygen (optical RDO? technology)
?Temperature accuracy °C	pH: ±0.2DO: ±0.1
Temperature range °C?	pH: ATC: -5.0 ... 105.0; MTC: -30 ... 130DO: 0.0 ... 50.0
?Temperature resolution °C	pH: 0.1DO: 0.1
mV-range?	-1999 9 ... 1999.9
?mV-relative accuracy	± 0.1
mV-resolution?	0.1
pH-range?	-2.000 ... 19.999
pH-relative accuracy?	± 0.002
pH-resolution	0.1/0.01/0.001

Product Type	SG68 – SevenGo Duo pro? pH/Ion/Dissolved Oxygen
Calibration	pH: Max. 5 points, 7 predefined buffer groups; DO: 1 or 2 points
DO accuracy	±0.5%
DO range	0.0 ... 600%, 0.00 ... 99.00 mg/L
DO resolution	0.1 ... 1%, 0.01 mg/L
Display	Dot matrix LCD
Free disk space	500 data records
Operating environment	0 ... 40°C; 5 ... 85% relative humidity (no cond.)
Power supply	4 AA batteries 1.5 V or NiMH accumulator 1.3 V
Short description?	Professional two-channel meter for the parallel determination of pH, ion concentrations, mV/redox or rel. mV and dissolved oxygen
?Temperature accuracy °C	pH: ±0.2/DO: ±0.1
Temperature range °C?	pH ATC: -5.0 ... 105.0; MTC: -30 ... 130/DO: 0.0 ... 60.0
?Temperature resolution °C	pH: 0.1/DO: 0.1
mV-range	-1999 9 ... 1999.9
mV-relative accuracy???	± 0.1
mV-resolution?	0.1
pH-range?	-2.000 ... 19.999
pH-relative accuracy?	± 0.002
pH-resolution	0.1/0.01/0.001