pH Range

0.00 to 14.00 pH

pH Resolution

0.01 pH

pH Accuracy

±0.05 pH

Conductivity Range

0 to 3999 µS/cm

Conductivity Resolution

1 µS/cm

Conductivity Accuracy

±2% F.S.

TDS Range

0 to 2000 ppm (mg/L)

TDS Resolution

1 ppm (mg/L)

TDS Accuracy

±2% F.S.

Temperature Range

0.0 to 60.0°C / 32.0 to 140.0°F

Temperature Resolution

0.1°C / 0.1°F

Temperature Accuracy

±0.5°C /±1°F

EC/TDS Calibration

automatic, one-point at: 1413 µS/cm, 1382 ppm (mg/L)

pH Calibration

automatic, at one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)

Temperature Compensation

pH: automatic; EC/TDS: automatic with β adjustable from 0.0 to 2.4% / °C

TDS Conversion Factor

0.45 to 1.00

pH Electrode

HI73127 (replaceable; included)

Battery Type/Life

1.5V (4) / approx. 100 hours of continuous use, auto-off after 8 minutes of non-use

Environment

0 to 50°C (32 to 122°F); RH max 100%

Dimensions

163 x 40 x 26 mm (6.4 x 1.6 x 1.0’’)

Weight

100 g (3.5 oz.)

Ordering Information

HI98129 is supplied with HI73127 pH electrode and HI73128 electrode removal tool, batteries (4 x 1.5V) and instructions.