Description
LabSen 213 combined glass pH electrode with integrated temperature sensor is designed for routine, high-precision measurements in aqueous solutions for research and quality control. The LabSen S-type hemispherical glass membrane offers low resistance yet is up to ten times tougher than conventional membranes, delivering fully stabilised readings within 15 to 30 seconds. A durable long-life reference system consisting of a glass tube, AgCl and silver wire, protected by cotton packing, maintains reference stability across temperature changes and extends electrode service life. The patented pH/temperature combination places the NTC 30 kΩ sensor in an independent cavity beneath the membrane with a heat-conducting medium, accelerating temperature response by approximately 40 % and improving overall pH stability. Compatible with TRIS buffer solutions and manufactured with Swiss technology from APERA Instruments, the electrode features a lead-free glass shaft, ceramic diaphragm and 3 M KCl gel electrolyte that resists bubble formation. Dimensions are Ø12 × 120 mm; the cable is Ø5 mm × 1 m with BNC for pH and RCA for temperature. Measuring range is 0 to 14 pH and recommended operating temperature −5 to 100 °C. The dual-connector design works with meters supporting BNC/RCA while the BNC side remains widely compatible with standard laboratory pH instruments.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Product type: Combined glass pH electrode
- pH range: 0 – 14
- Dimensions: Ø12 × 120 mm
- Membrane type: LabSen S-type hemispherical glass
- Connection: BNC/RCA
Recently viewed
You may also like
Browse related categories
Category
Sub-category
Catalogue
Brand
Questions about LabSen®213 Professional 3-in-1 Glass pH/Temp. Electrode
What is this article?
LabSen®213 Professional 3-in-1 Glass pH/Temp. Electrode 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.
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.
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.