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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Please reset it: Press and hold the CF filter life indicator for 7 seconds
10 boxes/case
Weight 37 lbs
variety of starter seeds (leafy greens
HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp meter spl_hi "acceptedAnswer": { "@type": "Answer"Description HM 100: Continuous pH EC TDS Temp Monitor The HM 100 is a pH EC TDS Temp monitor ideal for all water quality testing, hydroponics, water purification applications, wastewater regulation, aquaculture, colloidal silver, labs and scientific testing, pools and spas, ecology testing, boilers and cooling towers, water treatment and more. Features Measures Potential Hydrogen (pH), Electrical Conductivity (EC), Total Dissolved Solids (TDS),
