Direct measurement of pH on paper and leather are fast and accurate with the HI 99171N pH meter and the flat tip probe designed to optimize surface contact with the sample.

Measurements are automatically compensated for the effects of temperature and the LCD continuously displays the samples temperature. All operations can be performed simply with 2 buttons; messages and symbols on the display guide the user through measurement and calibration procedures.

pH and temperature ranges are extended, from -2.00 to 16.00 pH and -5.0 to 105.0 °C, respectively. Calibration is automatic at 1 or 2 points, selectable by the user between 2 memorized buffer sets.

Battery life is more than 1500 hours and the percentage of remaining charge is displayed while the meter is on. HI 99171N turns off automatically after 8 minutes of inactivity.

HI 99171N is supplied with HI 1414D pH electrode, pH 4 and pH 7 buffer sachets, HI 700680 cleaning solution (2 x 20 sachet), HI 70960 sample preparation solution (30mL), batteries, rugged carrying case and instructions.

Technical data

Range:

-2.00 to 16.00 pH

-5.0 to 105.0°C

Resolution:

0.01 pH

0.1°C

Accuracy:

±0.02 pH

±0.5°C (up to 60°C), ±1°C (outside)

Calibration:

Αutomatic 1 or 2 points with 2 set of memorized buffers:

4.01/ 7.01/ 10.01 or 4.01/ 6.86/ 9.18

Electrode:

HI 1414D, amplified, flat tip,with internal temperature sensor

Temperature compensation:

Automatic, -5 to 105°C

Battery type:

3 x 1.5V AA / approx. 1500 hours of continuous use: auto-off after 8 minutes of non-use

Dimensions:

150 mm x 80 mm x 36 mm

Weight:

210 gr