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• Safe and effective for many different species and sizes of plants grown together in greenhouses and nurseries
yet it grows large plants efficiently
Durable plastic will give you years of use
Record the high and low points for both temperature and humidity
Rock Resinator uses an extensive and complex combination of phosphorus and potassium designed to pack on extra size and weight
Active Air 3-Way Meter Woodstream Corporation • Safe and effective forProduct Details Gardeners can conveniently test their moisture, light, and pH levels with the handy Active Air 3 Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist); light readings range from 0 LUX (low light) to 2000 LUX (very strong light); accurate pH readings range between pH 3. 5 and 8. The durable, easy to read tester is suitable for indoors or out and needs no batteries to operate. Remove from soil and clean prongs after
