Milwaukee MW804 pH/Conductivity/TDS/Temperature Testers with replaceable electrode

Milwaukee MW804 pH/Conductivity/TDS/Temperature  pH/EC/TDS/Temp Waterproof IP65 rated, 4-in1 Combo Tester, Automatic Temperature Compensation (ATC), Automatic 2 point (pH) and 1 point (EC) calibration, Range: pH 0-14, EC 20.00 mS/cm, TDS 0-10.00 ppt, 0-50 C/23-122 F, Accuracy + .05 pH, EC/TDS 2% Full Scale, Temp + 1 F, Includes strater calibration solutions, Replacement Probe Model is MI60P The large display shows readings in an extended range from 0.00 to 14.00 pH and 0 to 3999 μS/cm, 0 to 2000 ppm (MW803), 0 to 20.00 mS/cm, 0 to 10.00 ppt (MW804) and simultaneously shows temperature from 0.0 to 50.0°C or 32.0 to 122.0°F. They have a stability indicator and hold function that freezes the display for easy and accurate recording. The large display also has graphic symbols to guide you through all operations. The EC/TDS conversion factor is user selectable as well as the temperature compensation coefficient (β).Ideal for quick and accurate measurements in swimming pools, aquariums and h