Hanna Replacement Probe for Grochek HI9813-5N & HI9811-5N bloom nutrients How should the RAY44 be

How should the RAY44 be stored when not in use

These active ingredients are listed as food grade materials

reservoirs

Superior Value: Eco-compressed bales fluff to about twice the labeled volume (1 cu ft bale provides about 2 cu ft of usable soil)

Hanna Replacement Probe for Grochek HI9813-5N & HI9811-5N bloom nutrients How should the RAY44 beThis pH EC TDS temperature probe probe features a fiber junction and gel electrolyte making it ideal for fertilizer solutions. It is a replacement electrode for the GroChek series " 5" models: HI9813 5 & HI9813 5N, and is designed for simplicity of use in taking pH, mS cm, ppm and temperature in the C scale measurements. The meter the probe supports is a versatile, water resistant, multiparameter portable instrument specifically designed for