Milwaukee EC45 EC/TDS Nutrient Meter

Designed for hydroponics, horticulture, and agriculture applications, the Milwaukee EC45 EC/TDS Nutrient Stick helps to make sure that your vegetables and plants are receiving the right amount of nutrient to promote healthy growth. Keeping EC/TDS in your target range helps to achieve better results. Design Features Measures conductivity (EC) and total dissolved solids (TDS) with automatic temperature compensation (ATC) Ideal ranges for hydroponics Units directly in mS/cm/CF/ppm (no conversions required) Factory calibrated: no continuous calibration required High accuracy Auto on/off feature Blue LED display Graphite electrode in ABS + PC body. Battery level indicators Battery life up to 3 years at approx. 10 measurements per day 3 x 1.5V AA Alkaline (batteries included) Care and Use Maintenance / Cleaning EC/TDS electrodes can develop nutrient build up over time. To minimize build up, always rinse the meter in fresh tap or DI water after every use. For Monthly Cleaning: SEE INSTRUCTIONS. Converting EC to TDS The Milwaukee EC40 meter, like all conductivity meters, provides a measure of electrically charged ions in a solution and is an absolute measure of conductivity. EC is often converted to TDS in parts per million (ppm). Different scales include the 500 scale, 650 scale and the 700 scale. However, the EC40 has all the readings direct EC/TDS/CF. Your µS/cm reading can be approximately converted to TDS (ppm) as shown in the examples below. 1 µS/cm = 0.5 ppm on a .5 factor scale 1 µS/cm = 0.7 ppm on a .70 factor scale (442) Specifications for Milwaukee EC45 EC Range: 0.1 mS/cm (0.2 to 4.0 mS/cm) EC Resolution: 0.1 pH EC Accuracy: ± 0.25 mS/cm (4.0 to 6.0 mS/cm) Typical EMC Deviation: ±0.2 pH TDS Range 500 ppm scale: 500 ppm scale: 100 to 3000 ppm TDS Range 700 ppm scale: 700 ppm scale: 140 to 4200 ppm TDS Resolution & Accuracy 500 ppm Scale: 50 ppm (100 to 2000 ppm) / 125 ppm (2000 to 3000 ppm) TDS Resolution & Accuracy 700 ppm Scale: 70 ppm (140 to 2800 ppm) / 175 ppm (2800 to 4200 ppm) CF Range: 2 to 60 CF CF Resolution: 1 CF (2 to 40 CF) / 2.25 CF (40 to 60 CF) Meter Accuracy: ± 4% of reading / ± 1 Resolution Point Calibration: Factory calibration (no additional calibration required) Probe: Graphite electrode in ABS + PC body Temperature Compensation: Automatic from 5 to 50°C (41 to 122 °F) Battery Type: 33 x 1.5V AA (included) Battery Life: 3 years @ 10 tests per day Measurement Display: 24 blue LEDs bar Environment: 0 to 50°C / 32 to 122°F; max RH 95% Dimensions: Length: 17.48" inches (444 mm) / Diameter: 30 mm diameter (1.18") Weight: 9.3 ounces (265 g) Casing Protection: IP67, floating