Hanna GroLine HI98331 Direct Soil EC Tester | Penetration Probe Air Filters + Odor Control or anyone looking to efficiently

or anyone looking to efficiently store plant material for extended periods

Its printed dot reads red while there is work left

The compact bar form factor integrates seamlessly into the ROI-E720 frame without adding significant weight or blocking primary light output

That is the configuration a packaging line wants

Corrosion-Resistant Build: Powder-coated guards and hot-dip galvanized bracket

Hanna GroLine HI98331 Direct Soil EC Tester | Penetration Probe Air Filters + Odor Control or anyone looking to efficientlyWhat a Direct Soil EC Meter Saves You The old routine was a slurry. Take a sample, mix it with distilled water at a set ratio, wait, filter, then read the extract. It works, and it takes long enough that most people skip it. The HI98331 puts a stainless steel penetration probe into the substrate and reads it where it sits. Range runs 0 to 4000 uS cm, resolution 1 uS cm. One button, one point calibration, done automatically against a 1413 uS cm