HI 991300

Portable pH/EC/TDS/Temperature Meter Low Range EC & TDS
HI 991300 has been designed to offer you  pH, conductivity, total dissolved solids and temperature measurements all in a slim, lightweight, portable unit. From purified to brine water measurement, you can select the meter which will work best with your range of conductivity for greater precision.

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 HI 1288 pre-amplified multiparameter probe features an easy to clean sensor and a cloth junction that can be pulled longer to increase the life of the probe. To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the HI 1288.

User selectable features include different TDS factors from 0.45 to 1.00 and a range of temperature coefficients (β) from 0.0 to 2.4% for greater consistency and reproducibility. Standardized buffer recognition values are also selectable.

This instrument easily fits in the palm of your hand and the bottom probe connection ensures the electrode cable doesn’t get in your way. The large, multi-level LCD displays the primary reading, temperature and calibration guides simultaneously.

Specifications
Range pH 0.00 to 14.00 pH
EC 0 to 3999 µS/cm
TDS 0 to 2000 ppm (mg/L)
Temperature 0.0 to 60.0°C (32.0 to 140.0°F)
Resolution pH 0.01 pH
EC 1 µS/cm
TDS 1 ppm
Temperature 0.1°C (0.1°F)
Accuracy pH ±0.01 pH
EC ±2% F.S.
TDS ±2% F.S.
Temperature ±0.5°C (±1.0°F)
TDS Conversion Factor  selectable 0.45 to 1.00 with 0.01 increments (default 0.50)
pH Calibration  automatic, one or two point calibration with two sets of memorized buffers (Standard 4.01, 7.01, 10.01 or NIST 4.01, 6.86, 9.18)
EC/TDS Calibration  automatic, 1 point at 1382 ppm (CONV 0.5)
at 1500 ppm (CONV 0.7)
at 1413 µS/cm (others)
Temperature Compensation pH Automatic
EC/TDS Automatic with selectable ß from 0.0 to 2.4%/°C with 0.1 increments
Probe  HI 1288 PVC body, pre-amplified multiparameter probe with internal temperature sensor, DIN connector and 1.2 m (3.93’) cable (included)
Battery Type / Life  1.5V AAA (3) /approximately 500 hours of continuous use. auto-off after 8 minutes of inactivity
Environment  0 to 50°C (32 to 122°F); RH max 100%
Dimensions  152 x 58 x 30 mm (6.0 x 2.3 x 1.2”)
Weight  205 g (7.2 oz.)

Accessories
Electrodes
HI 1288  Preamplified pH and EC Probe
Solutions
HI 7004L  4.01 pH Buffer Solution
1 x 500 mL bottle
HI 7007L  7.01 pH Buffer Solution
1 x 500 mL bottle
HI 7010L  10.01 pH Buffer Solution
1 x 500 mL bottle
HI 7030L  12880 µS/cm EC Solution, 500 mL Bottle
HI 7031L  1413 µS/cm EC Solution, 500 mL Bottle
HI 7032L  1382 mg/L (ppm) TDS Bottle, 500 mL Bottle
HI 70442L  1500 mg/L (ppm) TDS Solution, 500 mL Bottle
HI 70300L  Electrode Storage Solution
1 x 500 mL bottle
HI 7061L  General Purpose Cleaning Solution
1 x 500 mL bottle
Accessories
HI 710023  Shockproof Rubber Boot
Streamlined Style Casing, Orange
HI 710024  Shockproof Rubber Boot
Streamlined Style Casing, Blue