Save Money. Grow Your Own!
Fast Plain Box Shipping.
We ship to the US & Canada.
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 Aperas Swiss LabSen proprietary sensor technology
1-year warranty