Hanna HI-991300 Low Range EC, TDS , pH and Temperature Meter


(GST 18% Exclusive)

50 in stock


Hanna HI-991300 is a lightweight, portable pH, conductivity, and temperature meter for portable applications requiring both a pH and conductivity measurement.
Applications: Measurements for greenhouses irrigation, hydroponics, and groundwater monitoring from agriculture nutrient pollution.

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Hanna HI-991300 meter features two operation buttons and is simple to use. By using these two buttons, all operations and settings including calibration buffers and temperature scale selections are made. It consists of waterproof and compact casing for IP Protection IP67 conditions and a large tri-line display. This meter has automatic pH calibration at one or two points and a single conductivity calibration. Other user-selectable features include different TDS factors ranges from 0.45 to 1.00, and a range of temperature coefficients from 0.0 to 2.4% for better conductivity or TDS solution temperature compensation. Along with this meter, a specifically designed multi-parameter probe is also included.

Each meter is supplied complete with:

  • HI-12883 pH/EC/TDS probe with built-in temperature sensor, DIN connector and 1mm cable
  • pH 4.01 & 7.01 buffer sachets
  • HI-70031 1413 µS/cm and HI-70032 1382 ppm 1 sachet of each
  • HI-700601 Electrode cleaning solution (2 sachets)
  • 100ml beaker
  • Alkaline batteries: 1.5V AAA x 3
  • Rugged carrying case
  • Calibration certificate of meter
  • Calibration certificate of the probe

Additional information

Weight 1 kg


Select Model

HI-991300, HI-991301

Measuring Parameters

EC, TDS, pH and Temperature


pH: -2.00 to 16.00 pH / -2.0 to 16.0 pH; pH-mV: ±825 mV (pH-mV); EC: 0 to 3999 μS/cm**; TDS: 0 to 2000 ppm; Temp.: -5.0 to 105.0 °C / 23.0 to 221.0 °F

Accuracy @ 20°C/68°F

±0.02 pH / ±0.1 pH; ±1 mV (pH-mV); ±0.5 °C / ±1.0 °F Temperature;


pH: 0.01 pH / 0.1 pH; pH-mV: 1 mV; EC: 1 μS/cm; TDS: 1 ppm (mg/L); Temp.: 0.1 °C / 0.1 °F


0 to 50°C (32 to 122°F); RH max. 100%

TDS Conversion factor

Selectable from 0.45 to 1.00 with 0.01 increments

IP Rating



154 x 63 x 30 mm


0.196 kg

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Hanna HI-991300 Low Range EC, TDS , pH and Temperature Meter


(GST 18% Exclusive)

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