HI 991300N measures pH, electro-conductivity, total dissolved solids and temperature in a single instrument. There are only 2 buttons, yet you can select from a range of calibration buffers and even the temperature scale (°C or °F) most familiar to you. The housing is waterproof and rated for IP 67 conditions.

The multi-parameter probe, HI 1288, includes pH, EC/TDS and temperature in one convenient, rugged handle.

Other user selectable features include different TDS factors from 0.45 to 1.00, and a range of temperature coefficients (ß) from 0.0 to 2.4% for greater consistency and reproducibility. Also selectable are standardized buffer recognition values.

To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the probe.

HI 991300 is supplied with pH/EC/TDS/T HI 1288 probe, with 1m cable, batteries, rugged carrying case and instructions.

Technical data

Range:

0 to 3999 μS/cm-EC

0.00 to 14.00 pH

0.0°C to 60.0°C

0 to 2000 ppm-TDS

Resolution:

1 μS/cm

0.01 pH

0.1°C

1 ppm

Accuracy:

±2% full scale EC/TDS

±0.01 pH

±0.5°C

Calibration:

Automatic, 1 or 2 points with 2 sets of memorized buffers-pH:
4.01/ 7.01/ 10.01/ ή 4.01/ 6.86/ 9.18

Automatic at one point-EC/TDS

Temperature compensation:

Automatic

Electrode:

ΗΙ 1288, DIN connector, 1 m cable

Battery type:

4 x 1.5 V / approx. 500 hours of continuous use

Dimensions:

150 mm x 80 mm x 36 mm

Weight:

210 gr