Description
Wetting cap InLab 12 mm is a dedicated accessory for maintaining the sensing tip of InLab electrodes and sensors that have a 12 mm shaft diameter. The cap is designed to keep the membrane or junction properly wetted during storage or short-term idle periods, thereby helping to preserve electrode readiness between measurements. It is supplied as a single piece with a net weight of 0,01 kg and a gross weight of 0,04 kg. This wetting cap from manufacturer Mettler-Toledo OnLine is intended for use with the corresponding InLab series of pH, conductivity and dissolved-oxygen sensors commonly employed in laboratory and process analytics. Correct hydration of the sensing element supports stable response and reduces the risk of drying-out damage. The simple push-on design matches the 12 mm geometry of the InLab range, making the cap a practical spare or replacement part for electrode maintenance kits. Laboratories that rely on InLab sensors can keep spare wetting caps on hand to ensure continuous availability of properly conditioned electrodes for routine and critical measurements.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Type: wetting cap
- Compatibility: InLab 12 mm
- Shaft diameter: 12 mm
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Questions about Wetting cap InLab 12 mm
What is this article?
Wetting cap InLab 12 mm 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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.

