We at The Urban Farm prefer measuring with the EC scale because no conversions are needed to get to ppms, hence no confusion about which calibration solution you are using. EC is EC, everyone on the same page. This is a solid, mid-range pocket meter that will more than suit your purposes with hydroponics.
DiST testers are reliable, pocket-sized instruments that will give you quick and accurate readings of conductivity and TDS.
This popular line of Dissolved Solids Testers have been redesigned to offer a host of improvements.
The casing has been modified to provide increased strength, a better fit for holding and a large LCD for easy viewing. The graphite sensors provide better repeatability since they do not oxidize. The casing has been engineered to allow air bubbles to escape. The temperature sensor is exposed to provide faster response time.
If calibration is necessary, simply submerge the electrode tip into calibration solution and adjust the trimmer on the side of the tester.
Range 1999 µS/cm
Resolution 1 µS/cm Accuracy ±2% F.S.
Calibration Solution HI 70031
Calibration manual, 1 point
Probe HI 73303
Temperature Compensation Automatic, 0 to 50°C (32 to 122°F)
Battery Type / Life 4 x 1.5V / approx. 200 hours of continuous use
Environment 0 to 50°C (32 to 122°F); RH max 95%
Dimensions 175 x 41 x 23 mm (6.9 x 1.6 x 0.9")
Weight 95 g (3.4 oz.)