Description
GS4-E pH/conductivity electrode for GroStar GS4 is the combined replacement electrode for the GroStar™ GS4 pH and conductivity meter. It simultaneously measures pH, electrical conductivity (EC, 500 ppm, 700 ppm) and temperature. The pH channel uses a lithium glass membrane with double diaphragm and Ag/AgCl reference plus gel KCl electrolyte, ensuring durable and precise pH readings from 0 to 14. The conductivity channel employs a titanium-alloy sensor with cell constant K=1 for accurate measurements in the range 0 to 10 mS/cm. An integrated 30 kΩ thermistor covers temperature from 0 to 50 °C. Housed in a compact polycarbonate body measuring 75 × 35 × 35 mm, the electrode attaches rapidly without tools. Compatible exclusively with the GroStar™ GS4 instrument from manufacturer APERA Instruments, it is suited to laboratory and grow-media applications and is backed by a 12-month manufacturer warranty.
This article is part of Conductivity meters & cells, in pH & electrochemistry. See also pH meters.
Key features
- Pack size: 1 pc
- Product type: pH/conductivity electrode
- pH measuring range: 0 to 14
- Diaphragm: Double diaphragm
- Conductivity range: 0 to 10 mS/cm
- Sensor type: Lithium glass / titanium alloy
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Questions about GS4-E pH/Conductivity Electrode for GroStar GS4
What is this article?
GS4-E pH/Conductivity Electrode for GroStar GS4 is the article on this page. Luminix Health distributes APERA Instruments for laboratory use. It sits in Conductivity meters & cells, inside pH & electrochemistry, in Lab instruments.
A conductivity meter and its cell measure how well a solution carries current. The cell constant is the geometry that converts conductance to conductivity, and it is calibrated with a standard. Temperature compensation matters because conductivity rises with temperature.
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 Conductivity meters & cells. The catalogue is Lab instruments.
Shelves beside this one are pH electrodes & sensors, pH meters, Dissolved oxygen & multiparameter meters, Titrators & electrochemistry systems and pH & electrochemistry accessories.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.