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process pH glass electrode (platinum for ORP) which is compared to a reference electrode in KCL solution
• Does not kill beneficial insects
2 x V-Hooks
Plant Success Organics Soluble is an organic and diverse grouping of beneficial soil organisms well-suited to a variety of soils
Fits 8" ducting
Universal CO2 Monitor special-order process pH glass electrode (platinumVery affordable, and simply all you need to regulate CO2. This CO2 controller can accurately monitor room CO2 levels and turn CO2 regulators or generators on and off. The monitor is preprogrammed to turn devices on at 1300 ppm and off at 1500 ppm with overshoot already calculated. Instead of a costly digital readout, the HydroGEN CO2 monitor uses indicator lights to show approximate CO2 levels. Hydro Innovations uses a high quality, self calibrated,
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