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This controller is easy to use and versatile too
HM Digital Hydromaster Portable - pH/TDS/EC/Temp: HM Digital Hydromaster 500 - Continuous pH/TDS/EC/Temp meter (Item Number HM-HM-500)
Flexible design allows you to start with the core structure and add upgrades as needed
Quantity: 4PCS per set
5L Short Path Distillation Kit with P5 Distillation Head
HM Digital Pro Series Pen style TDS/EC/Temp meter spl-athena This controller is easy toDescription COM 100: Waterproof Professional Series EC TDS Meter The COM 100 is a professional grade level EC TDS Temp meter 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 electrical conductivity (EC), total dissolved solids (TDS),
