Growlink Terralink Substrate Sensor Craft Farmer A part-used 600-count case still

A part-used 600-count case still works months later

Its nutrient-holding capacity prevents nutrient leaching

After a very short time

Superior Air Circulation and Filtration Options

it lands a fan

Growlink Terralink Substrate Sensor Craft Farmer A part-used 600-count case stillReading the Root Zone with the Growlink TerraLINK Substrate Sensor The Growlink TerraLINK Substrate Sensor reads volumetric water content, bulk EC, and root zone temperature directly inside coco or rockwool. The probe runs as a TDR substrate probe Time Domain Reflectometry so EC drift doesn't corrupt the VWC number during aggressive drybacks. VWC reads 0. 01. 0 m m at 0. 02 from 053% and 0. 04 above. Bulk EC spans 020,000 S cm at (5% + 10 S cm) up to