Apera GroStar GS2-E Replacement Soil Spear pH Electrode Pulse Pro With 5 hole sizes

With 5 hole sizes

Oregonism XL is incredibly versatile and effective in potting soil and hydroponics

Larvae and Adult Insects

This wall-mounted unit lets you dial in relative humidity levels to create a healthy

9 to 379 LPM)

Apera GroStar GS2-E Replacement Soil Spear pH Electrode Pulse Pro With 5 hole sizesAI58020 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