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Average Growth - 10-11 months
The Phantom II is TOTALLY silent
and potassium
Patented design & technology developed in California
Hanna Instruments GroChek pH/EC/TDS/C Portable Meter w/Cal Check biological fertilizer Average Growth - 10-11 monthsHI 9813 6 is a versatile, water resistant, multiparameter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. This meter features an large LCD that clearly displays the parameter being measured as well as calibration instructions. Calibration is fast and easy with knobs located on the front panel of the instrument. HI 9813 6 includes all the features of the HI 9813 5 while
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