Description
The SG68-B SevenGo Duo pro pH/ION/DO is a professional two-channel handheld meter for pH, ion concentration and dissolved oxygen in demanding laboratory and field work. It offers manual or automatic air-pressure compensation via a built-in barometer (500 to 1100 mbar), a backlit LCD, large data memory for detailed GLP protocols and an infrared interface for transfer to a printer or PC (via RS232 or USB), plus numerous parameter-specific functions. Dissolved oxygen covers 0,0 to 600 % or 0,00 to 99,00 mg/L with resolution of 0,1 to 1 % or 0,01 mg/L and accuracy of ±0,5 %; the DO temperature range is 0,0 to 60,0 °C at 0,1 °C resolution and ±0,1 °C accuracy. The pH range extends from −2,000 to 19,999 with selectable resolution 0,1/0,01/0,001 and relative accuracy ±0,01; mV spans −1999,9 to 1999,9 at 0,1 mV resolution and ±0,1 relative accuracy. Temperature support includes ATC −5,0 to 105,0 °C and MTC −30 to 130 °C (0,1 °C resolution, ±0,2 °C accuracy). Power comes from four 1,5 V AA batteries or 1,3 V NiMH accumulators. This instrument-only package from manufacturer Mettler-Toledo OnLine comprises the meter, operating instructions, declaration of conformity, test certificate and batteries; net weight is 1,66 kg.
This article is part of pH meters, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Channels: 2 (pH/ION and DO)
- pH range: −2,000 … 19,999
- DO range: 0,0 … 600 % / 0,00 … 99,00 mg/L
- Air pressure: 500 … 1100 mbar
- Interface: IR to printer or PC
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Questions about SevenGo Duo pH/Ion/DO meter SG68
What is this article?
SevenGo Duo pH/Ion/DO meter SG68 is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in pH meters, inside pH & electrochemistry, in Lab instruments.
A pH meter reads the electrode and displays pH, after calibration with at least two buffers. A meter that cannot be calibrated is a voltmeter. Resolution to 0.001 is not the same as accuracy. Portable and benchtop meters differ in the electrodes they accept and in the data they store.
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 pH meters. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, Conductivity meters & cells, 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.
How does ordering and shipping work?
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.