HM Digital

HM Digital COM-300: Waterproof Professional Series pH/EC/TDS/Temp Meter The COM-300 is a professional grade level pH/EC/TDS/Temp meter ideal for all water quality testing, hydroponics, water...

Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing,...

Measuring the pH value of water-based solutions is important for various applications. This can be easily done using HM Digital PH-80 pH Hydro Tester. This device is economically priced, and...