HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp meter spl_hi Safe around my dogs and

Safe around my dogs and still knocks out weeds fast

Please reset it: Press and hold the CF filter life indicator for 7 seconds

display: grid

and more productive plants

HM Digital Hydromaster 100 - Continuous pH/TDS/EC/Temp meter spl_hi Safe around my dogs andDescription 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),