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Apera Instruments GroStar Series GS1-E Replacement pH Probe
Special Features
- Replacement probe for GroStar GS1 pH Pen Tester
- Built with lithium glass membrane and double-junction to ensure high accuracy and durability
- 1-year warranty
- Also compatible with GS2 and GS4
Description
The replacement double-junction pH probe for GroStar GS1 pH Pen, also compatible with GS2 and GS4, suitable for general water solutions
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