Hanna Instruments

Scientific Equipment

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

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

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

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

Complete with probe
2 year manufacturer warranty
In Stock
£600.65 (exc. VAT) £720.78 (inc. VAT)

The HI-991301 is a light weight, portable pH, conductivity and temperature meter for portable applications requiring both a pH and conductivity measurement. Applications include measurements for greenhouses irrigation, hydroponics and groundwater monitoring from agriculture nutrient pollution.

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

Hanna's extended description

The HI-991301 meter features two operation button and is simple to use. All operations and settings, including calibration buffers and temperature scale selections, are made through these two buttons. It has a waterproof and compact casing rated for IP67 conditions and a large tri-line display. The meter has automatic pH calibration at one or two points and a single conductivity calibration. Other user selectable features include different TDS factors 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. The meter is supplied with a multi-parameter probe specifically designed for this meter.

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 probe
  • Instruction manual

  • Replaceable Electrode – No need to replace the whole meter when the electrode needs replacing. Spare and replacement electrodes are available for this product.

    PC Interface - Download test results to a computer programmed with HANNA’s Windows® compatible software (HI-92000), directly from equipment via a USB port or a RS232 cable outlet. (Also see Bluetooth Connection).

    Optional shockproof silicon rubber boot

    Specially designed to protect your instrument from damage or impact - HI-710028 - Orange, HI-710029 - blue. Buy separately.


    Specifications list


    pH Range -2.00 to 16.00 pH*
    pH-mV ±825 mV (pH-mV)
    EC 0 .00 to 20.00 mS/cm**
    TDS 0.00 to 10.00ppt (g/L)
    Temperature Range -5.0 to 105.0°C
    pH Resolution 0.01 pH
    pH-mV Resolution 1 mV
    EC 1µS/cm
    TDS 1ppm (mg/L)
    Temperature Resolution 0.1°C
    pH Accuracy @20°C ±0.02 pH
    pH-mV ±1 mV
    EC/TDS ±2%F.S.
    Temperature Accuracy ±0.5°C
    pH Electrode HI-12883 pH/EC/TDS temperature sensor, Quick Connect DIN connector and 1 m (3.3') cable (included); please note: HI-12883 is limited to be used from 0 to 13 pH and from 0 to 50°
    TDS Conversion factor Selectable from 0.45 to 1.00 with 0.01 increments
    Battery Type / Life 3 x 1.5V AAA / approx. 600 hours of continuous use
    Environment 0 to 50°C (32 to 122°F); RH max 100%
    Dimensions 154 x 63 x 30 mm
    Weight 196 g
    Case Protection Rating IP67
    Ordering information HI-991301 is supplied with HI-12883 pH/EC/TDS probe with built-in temperature sensor, DIN Connector and 1m cable, pH 4.01 and 7.01 buffer sachets, HI-70030 12880 µS/cm and HI-70038 6.44 ppt calibration solution sachets, HI-700601 electrode cleaning solution sachets (2), 100mL beaker, 1.5V AAA batteries (3), calibration certificate of meter, calibration certificate of probe, instruction manual and HI-710142 rugged carry case.

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