From Hanna , the HI 9811-0 is a portable meter for field measurement of pH, conductivity and TDS.
The rugged housing has been specifically designed to be easy to use in the field, while reducing the number of instruments required for water quality analysis. HI 9811-0 measures pH from 0 to 14 with 0.1 resolution. The instrument also measures conductivity from 0 to 6000 µS/cm and TDS from 0 to 3000 mg/L. These ranges make HI 9811-0 perfect for use in boilers and cooling towers, printing and agriculture. Calibration has been simplified to one point for both pH and conductivity/TDS modes. HI 9811-0 and HI 9811-5 are equipped with Automatic Temperature Compensation. In addition, the BEPS Battery Error Prevention System) will alert the user when low batteries could affect the readings. This portable meter uses the 4-in-1 replaceable probe HI 1285-0 for pH/EC/TDS, while the probe HI 1285-5 for HI 9811-5 measures pH/EC/TDS and Temperature.
HI 9811-0 is supplied complete with pH/EC/TDS probe, HI 1285-0 with 1 m cable, pH 7 calibration solution (1 x 20mL), 1382 ppm and 1413 µS/cm calibration solutions 1 each), cleaning solution (2 pcs), blue protective case, battery and instructions. HI 9811-5 is supplied complete with pH/EC/TDS/T HI 1285-5 with 1 m cable, pH 7`calibration solution, 1382 ppm and 1413 µS/cm calibration solution (1 each), cleaning solution (2 pcs), blue protective case, battery and instructions.