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GroStar™ GS2 PenTester for Soil Samples
The GroStar™ GS2 pH Pen Tester is specifically designed for measuring pH levels in soil, making it an essential tool for gardeners, whether professional or hobb..
GroStar™ GS2-E Spear pH Electrode
The GroStar™ GS2-E Spear pH Electrode is a durable and high-performance replacement electrode designed for the GroStar™ GS2 pH Pen Tester. It is also compatible..
