HM Digital Pro Series Pen style pH/Temp meter GrowersHouse Never store the probe dry

Never store the probe dry

Zones: 5-10

Feed Water Temperature 41-100 °F/5-38 °C

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UJB is immediately available to the plant due to its low molecular weight and it also offers a very "clean" foliar spray that leaves no substantial build-up or residue on the plant tissue

HM Digital Pro Series Pen style pH/Temp meter GrowersHouse Never store the probe dryDescription PH 200: Waterproof Professional Series pH Temp Meter The PH 200 is a professional grade pH Temp meter ideal for all pH testing water. With its advanced microprocessor it provides highly accurate dependable readings in such applications as hydroponics, purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment,