Hanna HI-991301 High Range EC, TDS, pH and °C Meter


(GST 18% Exclusive)

50 in stock


Hanna HI-991301 is a light weight, 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-991301 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 a 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-70030 12880 µS/cm and HI-70038 6.44 ppt calibration solution – 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




Measuring Parameters

EC, TDS, pH and Temperature


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


pH : -2.00 to 16.00 pH / -2.0 to 16.0 pH; pH-mV: ±825 mV (pH-mV); EC: * 0.00 to 20.00 mS/cm**; TDS: 0.00 to 10.00 ppt; Temp.: -5.0 to 105.0 °C / 23.0 to 221.0 °F


pH: 0.01 pH / 0.1 pH; pH-mV: 1 mV; EC: 0.01 mS/cm; TDS: 0.01 ppt(g/L); Temp.: 0.1 °C / 0.1 °F

Accuracy @ 20°C/68°F

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

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Hanna HI-991301 High Range EC, TDS, pH and °C Meter


(GST 18% Exclusive)

Add to cart