GroStar GS2-E Replacement Soil Spear pH Electrode
This replacement probe for the GroStar GS2 Soil Spear pH Pen allows you to replace your pen's probe and extend the life of your tool. Premium probe technologies and materials ensure high accuracy and durability with minimal maintenance.
- Replacement GS2 probe measures pH and temperature
- Spear pH Probe measures pH and temperature in nutrient solutions, soil, coco coir, rockwool, and many other media types
- Impact-resistant spear glass tip, 10 times stronger than conventional glass bulb
- PTFE ring prevents a clogged junction caused by soil particles, significantly increasing durability
- 1-year warranty