HM Digital AquaPro TDS/Temperature Meter

$ 42.95 USD
  • Measures total dissolved solids (TDS) and temperature
  • Automatic Temperature Compensation (ATC)
  • Water-resistant housing
  • Measurement Range: 0-5000 ppm
  • Digital Calibration (push button)
  • Auto-off function, data-hold function, and low-battery indicator
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading
  • Calibrated with a 342 ppm NaCl solutionÑcan be recalibrated with digital calibration using the push buttons, rather than a screwdriver
  • Magnetic back
  • Includes a cap and batteries

HM Digital COM-80 EC/TDS/Temp Waterproof Hydro Tester

$ 42.95 USD
  • Measures electrical conductivity (EC), total dissolved solids (TDS). Excellent for hydroponic nutrient testing.
  • Four scales: EC: µS, mS; TDS: ppm, ppt
  • Automatic Temperature Compensation (ATC)
  • Water resistant
  • Measurement Range: 0-9990 µS; 0-5000 ppm; 0-9.9 mS; 0-5.0 ppt
  • Digital Calibration (push button) to any point within the meter's range
  • Auto-off function, data-hold function, and low-battery indicator
  • Display: large and easy-to-read LCD screen includes simultaneous temperature reading
  • Calibrated with a 1413 µS solution can be recalibrated with digital calibration using the push buttons
  • Includes a protective cap and batteries.
  • Accuracy: +/- 2%
  • 1-year warranty

HM Digital PH-80 pH Temperature Meter

$ 62.95 USD
  • Measures pH and temperature
  • One-touch automatic digital calibration
  • Water resistant
  • Simultaneous temperature display
  • Sleek, lightweight design
  • Large LCD display
  • Automatic Temperature Compensation (ATC)
  • Auto-off function, data-hold function, and low-battery indicator
  • Includes storage solution in a sponge embedded in a translucent cap
  • Factory calibrated to pH 7.0. Easily and quickly recalibrated with digital calibration to pH 4.0, 7.0 or 10.0
  • Includes a cap, batteries, storage solution and pH 7.0 buffer