Hanna GroLine Direct Soil EC Tester/Pen Tubing ensuring that the probes are

ensuring that the probes are exposed to a steady flow of water

Advanced Nutrients ensures that the Cultivator Series - Grow is scientifically formulated to offer consistent

Recharge when fresh water is added

Two duct sizes cover the range: 165 CFM at 4 inches and 352 CFM at 6 inches

All micronutrients are chelated to be available within the widest range of solution pH levels

Hanna GroLine Direct Soil EC Tester/Pen Tubing ensuring that the probes areHanna GroLine Direct Soil EC Tester Pen The HI98331 Direct Soil EC Tester Pen is a pocket tester that allows you to directly measure soil conductivity (EC) and temperature. The Direct Soil EC Tester Pen is a great option for taking direct conductivity measurements in soil because of its compact size, automatic calibration, and single button operation. The HI98331's steel penetration electrode means you no longer have to make soil slurries. The HI98331