Description
201-C Combined pH Electrode with BNC connector is a combination pH sensor designed for routine measurements in ordinary aqueous solutions across scientific research, environmental monitoring and quality-control laboratories. The high-quality glass sensing membrane and single ceramic junction operate with a gel KCl electrolyte that requires no refilling, while the polycarbonate shaft provides mechanical robustness. Measuring range covers 0 to 14 pH; electrode dimensions are ø12 × 160 mm and the cable is Ø3 mm × 1 m terminated with a standard BNC plug. A removable storage cap helps maintain membrane hydration between uses. The electrode contains no integrated temperature sensor, so automatic temperature compensation requires a separate probe or manual temperature entry. Recommended operating temperature is 0 to 80 °C; it is not intended for low-ionic-strength media such as deionised water, strongly alkaline solutions above pH 12, highly corrosive liquids or prolonged exposure above 60 °C. Compatible with any pH meter offering a BNC input, this sensor from manufacturer APERA Instruments is supplied as a single unit with a six-month manufacturer warranty.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Product type: pH electrode
- Measuring range: 0–14 pH
- Shaft diameter: 12 mm
- Junction: Single ceramic
- Electrolyte: Gel KCl
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Questions about 201-C Combination pH Electrode, BNC Connector, Polycarbonate/Glass
What is this article?
201-C Combination pH Electrode, BNC Connector, Polycarbonate/Glass is the article on this page. Luminix Health distributes APERA Instruments 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. Delivery across Europe, two to five days when in stock. 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.
