Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature Pest & Disease Control The remains of roots that

The remains of roots that died form an ideal growing substrate for pathogenic organisms

Essential nutrients are released gradually over the season as the protein decomposes in the soil

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Each product in the “GO” line enables you to enrich your garden

Hanna PH/EC/TDS/TEMP H19813-6 with Cal-Check Feature Pest & Disease Control The remains of roots thatThe Hanna Instruments HI 9813 6 Portable pH EC TDS Temperature Meter with CAL Check Feature is a versatile, water resistant, multipara meter portable instrument specifically designed for agricultural applications such as hydroponics, greenhouses, farming and nurseries. It features a 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