The glass bulb loses sensitivity with use and will eventually fail

Milwaukee MA920B/1 Direct Measurement Food Grade pH Probe

M10004B is a lab grade pH 4

A TDS tester that's ideal for all water purification applications

Take your water anywhere with the Aquamira RIGGER — a portable

Milwaukee EC40 EC/TDS Nutrient Meter – Hydroponics & Agriculture | IP67 filtered showerhead The glass bulb loses sensitivityDESCRIPTION The Milwaukee EC TDS Nutrient Meter is designed for Hydroponics, horticulture and agriculture to help you make sure that your vegetables and plants are receiving the right amount of nutrient to promote healthy growth with low to zero product waste. Keep EC TDS in your target range to help your achieve better results. DESIGN FEATURES Measures conductivity (EC) and total dissolved solids (TDS) with automatic temperature compensation. Ideal