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This probe is recommended for use with the HI981420 GroLine Hydroponic Nutrients Monitor for pH
Factory calibrated: Our meters are calibrated with a 342 ppm NaCl solution
Accurate monitoring and precise controls can save you money on energy costs by activating your humidification systems only when they’re needed
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Pro Balance concentrate may be mixed at a rate of 0
BuildASoil Worm Casting Vermicompost 2 Gallon Bag Massive This probe is recommended forBuildASoil Worm Castings are simply the best bulk source of castings we have ever had the pleasure of working with, we often find living worms still inside the bulk totes. This stuff is black and rich with moist well screened castings. Enjoy! We go through large volumes so you know we always have fresh castings on hand and not last years left overs. Brew the best compost tea, use Earth Worm Castings.
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