Description
GS1-E pH electrode for GroStar GS1 is a replacement pH sensing probe designed for the GroStar™ GS1 pocket meter and also compatible with GroStar™ GS2 and GroStar™ GS4 instruments. It uses a lithium glass membrane together with a double junction and gel KCl electrolyte referenced to Ag/AgCl, supporting stable pH measurement across the full 0 to 14 range with high accuracy and extended service life at low maintenance. An integrated 30 kΩ thermistor temperature sensor covers 0 to 50 °C (32 to 122 °F), enabling automatic temperature-related compensation when used with the matching meter. The polycarbonate housing measures 75×35×35 mm and the probe attaches quickly without extra tools, so a worn electrode can be exchanged without discarding the entire instrument. Intended for hydroponic, garden and general laboratory pH checks within the GroStar series, the electrode from manufacturer APERA Instruments carries a twelve-month manufacturer warranty. Product type is specified as pH electrode; shaft material is plastic and the reference electrolyte is gel. Diameter is 35 mm and length 75 mm according to the technical data.
This article is part of pH electrodes & sensors, in pH & electrochemistry.
Key features
- Pack size: 1 pc
- Product type: pH electrode
- pH range: 0 to 14
- Membrane: Lithium glass, double junction
- Reference: Ag/AgCl, gel KCl electrolyte
- Temperature sensor: 30 kΩ thermistor (0 to 50 °C)
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Questions about GS1-E pH Electrode for GroStar GS1
What is this article?
GS1-E pH Electrode for GroStar GS1 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?
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.