Alfred Digital EC/TDS/Temp Meter

The TDS-1 is an economically priced, reliable EC/TDS meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more. Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing.FeaturesFour scales: EC: µS, mS; TDS: ppm, pptAutomatic Temperature Compensation (ATC)Water resistantMeasurement Range: 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 pptDigital Calibration (push button) to any point within the meter's rangeAuto-off function, data-hold function and low-battery indicatorDisplay: large and easy-to-read LCD screen includes simultaneous temperature readingFactory Calibrated: The TDS-1 meter is calibrated with a 1413 µS solution— can be recalibrated with digital calibration using the push buttonsIncludes a protective cap and batteriesSpecificationsEC Range: 0-9990 µS; 0-9.9 mSTDS Range: 0-5000 ppm (mg/L); 0-5.0 pptTemperature Range: 1-80°C/33-176°FResolution: 1 µS/ppm; 0.1 mS/ppt Temp. resolution: 0.1°C/FAccuracy: +/- 2%EC-to-TDS Conversion Factor: NaCl (avg of 0.5)Calibration: Digital calibration by push buttonProbe: FixedHousing: Water resistantPower source: 3 x 1.5V button cell batteries (included) (model LR44 or equivalent)1 Year warrantyDimensions & weightDimensions: 6.0" x 1.3" x 0.7"