Hanna Instruments

Scientific Equipment

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HI-991001 Extended Range pH Meter with pH electrode & °C sensor

HI-991001 Extended Range pH Meter with pH electrode & °C sensor

Hanna HI-991001 Extended Range pH Meter with pH electrode & °C sensor

HI-991001 Extended Range pH Meter with pH electrode & °C sensor

pH Range: -2.00 to 16.00 pH
Accuracy: ±0.02 pH
In Stock
£381.75 (exc. VAT) £458.10 (inc. VAT)

HI-991001 is a durable, portable, pH and temperature meter used for most pH measurements encountered in manufacturing and environmental testing protocols.

HI-991001 Extended Range pH Meter with pH electrode & °C sensor information

Hanna's extended description

The meter is provided with a very rugged titanium bodied electrode with built-in temperature sensor for temperature compensated pH and temperature readings. It also contains an integral pH sensor pre-amplifier to provide stable measurements in electrically noisy environments.

Main features:

  • Simultaneous pH and temperature measurements on a large dual-line LCD display
  • Automatic pH calibration at one or two points within two memorised buffer sets (standard or NIST)
  • Selectable temperature unit (°C)
  • Electrode condition indicator
  • mV of pH measurement for electrode check
  • HI-12963 dedicated pH with integral temperature sensor
  • Probe quick connect system
  • Battery life indication and low battery detection
  • Keystroke confirmation tone
  • Auto-off function
  • Waterproof casing IP67

  • Water Resistant – Can withstand temporary exposure to water, but should not be submerged or washed under running water.

    Quick Connect DIN electrode

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

    Available to buy separately:

    Shockproof rubber boot:

  • HI-710028 Orange
  • HI-710029 Blue
  • HI-710030 Green
  • Specifications

    Specifications list


    pH Range -2.00 to 16.00 pH
    Temperature Range -5.0 to 105.0°C
    mV ±825 mV (pH-mV)
    pH Resolution 0.01 pH
    Temperature Resolution 0.1°C
    mV Resolution 1 mV
    pH Accuracy ±0.02 pH
    Temperature Accuracy ±0.5°C
    pH Electrode HI-12963 pre-amplified pH and temperature probe with titanium body, Quick Connect DIN connector and 1 m (3.3') cable (included); please note: HI-12963 is limited to be used from 0 to 13 pH and from 0 to 80°
    Battery Type / Life 3 x 1.5V AAA / approx. 1400 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

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