Description
SG78-B SevenGo Duo pro is a professional dual-channel instrument for pH, ion and conductivity measurement where only the meter is required. Built for high demands with straightforward operation and IP67-oriented portable use, it combines a large memory for detailed GLP records, an infrared interface for data transfer to a printer or PC, a backlit display and numerous parameter-specific functions. Features include timed interval measurement with automatic storage, capacity for 200 GLP-compliant data sets, selectable segmented or linear calibration, five-point pH calibration with six predefined plus one user-defined buffer set, user-definable standards or cell constant entry, linear and non-linear temperature compensation for conductivity, and pure-water measurement according to USP/EP. pH ranges from −2,000 to 19,999 (resolution 0,1/0,01/0,001; relative accuracy ±0,01); mV from −1999,9 to 1999,9. Conductivity spans 0,01 µS/cm to 1000 mS/cm (±0,5 %); TDS 0,01 mg/L to 600 g/L; salinity 0,00 to 80,00 ppt; resistivity to 100,00 MΩ·cm. This instrument-only package from manufacturer Mettler-Toledo OnLine includes the meter, operating instructions, declaration of conformity, test certificate and four 1,5 V AA batteries.
This article is part of Conductivity meters & cells, in pH & electrochemistry. See also pH meters.
Key features
- Pack size: 1 pc
- Measurement channels: Dual-channel pH/ion/conductivity
- pH range: −2,000 … 19,999
- Conductivity range: 0,01 µS/cm … 1000 mS/cm
- Data memory: 200 GLP-compliant data sets
- Calibration: 5-point pH, segmented or linear
- Technical Information Sheet:
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Questions about SevenGo Duo pH/Ion/Cond meter SG78
What is this article?
SevenGo Duo pH/Ion/Cond meter SG78 is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in Conductivity meters & cells, inside pH & electrochemistry, in Instruments de précision.
A conductivity meter and its cell measure how well a solution carries current. The cell constant is the geometry that converts conductance to conductivity, and it is calibrated with a standard. Temperature compensation matters because conductivity rises with temperature.
A pH meter is a voltmeter on a glass electrode. The voltage tracks hydrogen-ion activity, and the electrode is converted to pH only after it is adjusted with buffers of known value. Conductivity measures how well a solution carries a current, which for dilute salts tracks concentration. Dissolved oxygen and titration are further electrodes on the same idea: a sensor, a standard, and a reading that is only as fresh as the calibration. Buffer values and chemical identity sit on PubChem. Accreditation of the calibration laboratory is the field of BELAC and EURAMET.
Which category should I open next?
The category is pH & electrochemistry. The sub-category is Conductivity meters & cells. The catalogue is Instruments de précision.
Shelves beside this one are pH electrodes & sensors, pH meters, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.