Hanna GroLine HI98331 Direct Soil EC Tester | Penetration Probe Air Filters + Odor Control That is the configuration a

That is the configuration a packaging line wants

The extensive range of products and sizes available in the Grodan line provides growers with more options

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

It also gives a heavy late-flower root mass somewhere to sit

The 12-inch moves 1807 CFM and the 14-inch moves 2130 CFM

Hanna GroLine HI98331 Direct Soil EC Tester | Penetration Probe Air Filters + Odor Control That is the configuration aWhat 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