|1.3 × 4 × 1.3 in
AI58020 – GroStar GS2-E replacement Soil Spear pH electrode
• Spear pH Probe measures pH and temperature in nutrient solution, soil, coco coir, rockwool, and many other media types
• Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance
• Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb
• PTFE ring prevents a clogged junction caused by soil particles, significantly increases durability
• Backed by Apera’s Swiss LabSen® proprietary sensor technology
• 1-year warranty
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