



pH Probe Replacement Double-Junction for GroStar® GS1-E
AUD 95.00(Ex GST)
AUD 95.00(Ex GST)
- Replacement pH probe for GroStar® GS1 pH Pen Tester workflows
- Double-junction design supports accurate and durable pH measurement performance
- Lithium glass membrane supports reliable pH response during routine testing
- Also compatible with GroStar® GS2 and GS4 tester models
- Suitable for growers, hydroponic users and crop-management pH testing applications
- Supplied as a replacement probe when the original probe reaches end of service life
- Description
Description
Replacement Double-Junction pH Probe for GroStar® GS1-E, Compatible with GS1, GS2 and GS4, also known as a replacement pH probe for GroStar pen testers, is designed for users who need to continue using their compatible tester body without replacing the full instrument.
This probe is suitable for growers, horticulture users, hydroponic setups, greenhouse teams and crop-management workflows where regular pH checks are part of routine testing. The double-junction construction supports dependable performance during pH measurement, while the lithium glass membrane helps provide stable response for compatible testing applications.
This replacement probe is intended for use with compatible GroStar® pen tester models. Users should confirm model fit, probe installation method, calibration routine, cleaning process and storage procedure before use.
LabChoice Australia supplies replacement pH probes for growers, schools, universities, hydroponic users and testing facilities requiring compatible probe replacement for routine pH measurement workflows.
Warranty
The electrode is covered for defects in material and workmanship for one year from delivery, subject to the manufacturer’s warranty terms.
The limited warranty does not cover issues caused by accidental damage, improper use, normal wear and tear, transport, storage, failure to follow product instructions, unauthorised maintenance, unauthorised modification, unauthorised repair, incompatible use with other products or materials, abuse, accidents or external causes beyond reasonable control.
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What Our Customers Say
Emma Roberts
11 months ago
We ordered a set of customised BORO 3.3 borosilicate glassware for our teaching labs, and LabChoice Australia exceeded every expectation. From the first consultation to final delivery, their team listened carefully, offered expert advice, and ensured every piece matched our specifications perfectly.
The clarity and precision of the glassware are exceptional, and the quick turnaround made setup effortless. It’s refreshing to work with an Australian supplier who genuinely understands laboratory needs and takes pride in quality craftsmanship. We’ll definitely be returning to LabChoice for future glassware requirements
Michael Grant
12 months ago
Our lab required high-precision BORO 3.3 glassware for analytical testing, and LabChoice Australia delivered outstanding results. The ordering process was simple, communication was clear, and every beaker and flask arrived perfectly calibrated and ready for use.
The quality of the glass is exceptional — resistant to heat, easy to clean, and consistently accurate in measurement. It’s reassuring to know there’s an Australian supplier that combines scientific precision with genuine customer care. I’d recommend LabChoice to any research team looking for dependable labware
Sarah Nguyen
1 year ago
We needed a set of customised borosilicate glassware for a specialised project, and LabChoice Australia delivered exactly what we envisioned. The team worked closely with us from design to production, ensuring every detail met our specifications. The craftsmanship is exceptional, and the turnaround time was impressive. It’s reassuring to know we can rely on them for unique, made-to-order pieces
Dr. Emily Hart – Senior Research Scientist
1 year ago
LabChoice Australia has completely changed the way we source our lab glassware. The quality is consistently top-notch, and every piece meets the precision we need for reliable results. Their team knows their stuff, answers our questions quickly, and always goes the extra mile to help — they’re more like partners than just a supplier.
Mark Stevens
1 year ago
We trust LabChoice Australia because they deliver every time. Their borosilicate glassware is durable, accurate, and perfect for the high-heat work we do. Everything arrives well-packed with clear specs, so there are never surprises. It’s reassuring to deal with a supplier who understands both compliance and the demands of a busy lab





































