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Cutting the fan for short stretches lets ppm climb
and stress caused by temperature variations
and 22% K₂O front-load structural growth and root mass through veg without ammoniacal-N burn risk
It's made in the USA and comes in shorter 33 ft and 100 ft lengths if you need less reach
30-day granular release for simple top-dress or media mix-in—plant-safe and non-toxic
Growlink SDI-12 Climate Sensor 3 Foot Fixtures Cutting the fan for shortGrowlink SDI 12 Climate Sensor Built for PIC and Connect Controllers The ESM 3 reports air temperature, humidity, VPD, photocell, and optional CO2 through one SDI 12 digital interface. Each SDI 12 input on a Precision Irrigation Controller supports one ESM 3 plus one substrate probe. A standalone PIC handles four climate sensors and four substrate probes at once. Temperature reads 40 to 60C with 0. 5C accuracy. Humidity tracks 0 100% RH non condensing
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