Description
InLab Reach Pro-425 is a pH electrode developed for accurate measurements across a wide range of different sample types and is supplied in an especially long design. The sensor uses a glass shaft of 12 mm diameter and 400 mm length with an S7 screw head for connection to compatible meters. A ceramic diaphragm works together with an ARGENTHAL™ reference system that includes a silver ion barrier, while an integrated temperature sensor (NTC 30 kΩ) supports temperature-aware readings. The stated working ranges are pH 0 to 14 and 0 to 100 °C. Each electrode is delivered with 25 ml of reference electrolyte (3 mol/L KCl). This long-reach laboratory electrode from manufacturer Mettler-Toledo OnLine is suited to vessels and setups that require extended immersion depth. It is offered as 1 piece with a net weight of 0,34 kg and is intended for routine and specialised pH determination on diverse sample matrices in research and quality-control environments where stable glass-body performance and a protected reference are required.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Shaft: Glass, 12 mm diameter / 400 mm length
- Connection: S7 screw head
- Diaphragm: Ceramic
- Reference system: ARGENTHAL™ with silver ion barrier
- Temperature sensor: Integrated NTC 30 kΩ
- Technical Information Sheet:
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Questions about pH electrode InLab Reach Pro-425
What is this article?
pH electrode InLab Reach Pro-425 is the article on this page. Luminix Health distributes Mettler-Toledo OnLine for laboratory use. It sits in pH electrodes & sensors, inside pH & electrochemistry, in Lab instruments.
A pH electrode is a glass membrane and a reference. It is a consumable: the glass ages, the junction clogs, and the reading drifts. A refillable electrode and a gel electrode differ in how they are maintained. The connector has to match the meter. The electrode, not the meter, is usually what is wrong.
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 electrodes & sensors. The catalogue is Lab instruments.
Shelves beside this one are pH meters, 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.
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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.