AquaMaster S300 Pro 2 Substrate Pen - pH, temp scale Improves disease resistance using natural

Improves disease resistance using natural chemical processes

Rinse the probe with clean water

With smart features like weather-based adjustments and customizable schedules

and silicone

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AquaMaster S300 Pro 2 Substrate Pen - pH, temp scale Improves disease resistance using naturalS300 Pro 2 Substrate pH & Temp Meter Precision Testing for Cannabis Growing Media Accurate pH & Temperature Readings Right at the Root Zone The S300 Pro 2 Substrate Meter is your go to tool for measuring pH and temperature directly in moist substrates like coco coir, soil, or rockwoolessential for cannabis cultivators who want to keep root zone conditions dialed in. Whether you're growing indoors or out, in pots or raised beds, this meter delivers