Apera Instruments GroStar® GS2 Soil pH Pen Tester (Gen II) – The Ultimate Precision Tool for Growers
Take full control of your soil pH management with the GroStar® GS2 Soil pH Pen Tester (Gen II)—built for growers who demand lab-grade accuracy and reliability when testing soil, coco coir, rockwool, and nutrient solutions. Featuring the Swiss LabSen® replaceable spear soil pH probe, this tester ensures quick, stable readings while eliminating common junction clogs, giving you effortless, long-lasting performance.
Optimized for Direct Soil & Grow Media pH Testing
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Swiss LabSen® Spear Soil pH Probe – Provides high-precision readings in various grow mediums, ensuring minimal maintenance and extended probe life.
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PTFE Ring Junction Protection – Prevents clogging from soil particles, maintaining consistent accuracy over time.
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TruRead Measurement Mode – Automatically collects multiple readings, displaying average, minimum, and maximum values for complete soil analysis.
Designed for Effortless Calibration & Reliable Operation
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Quick 2-Point Automatic Calibration – Ensures seamless calibration, with a built-in electrode condition display for enhanced accuracy.
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3-Color Backlit LCD Screen – Offers clear readability in bright or dark grow environments, making pH testing simple at any time of day.
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Replaceable Probe System – Saves on costs, allowing easy probe replacement without discarding the entire tester.
Built for Growers Who Value Precision & Durability
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Waterproof, Impact-Resistant Construction – Engineered for harsh field conditions and greenhouse environments.
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Streamlined User Workflow – Intuitive setup, smart calibration, and effortless operation for fast, reliable soil testing.
Trusted by Professional Growers, Hydroponic Experts, & Agricultural Researchers
Used by farmers, hydroponic specialists, and agronomists, the GroStar® GS2 Soil pH Pen Tester (Gen II) delivers the accuracy and reliability growers need, making it the ultimate tool for soil pH management
