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Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm
Hanna Instruments Australia
Sales: (03) 9769 0666   |    Mon to Fri: 8:30am – 5:00pm

Pool Line Professional Waterproof Portable pH/ ORP Meter - HI981914


HI981914 Pool Line Professional Waterproof Portable pH/ORP meter is made for measuring pH and ORP of a swimming pool, hot tub, or spa water. This is an advanced meter with many features including Hanna’s exclusive CAL Check pH electrode diagnostics that is used to identify potential problems including when to clean the electrode, check a buffer for contamination and the overall health of a pH electrode. This function can be used to identify issues with process probes that have a BNC connector.

  • Laboratory grade measurements in a portable
  • CAL Check advanced probe diagnostics
  • Troubleshooting tool for the maintenance of process probes


HI981914 Pool Line Professional Waterproof Portable pH/ORP meter is a highly accurate that is equivalent to meters used in laboratories. HI 981914 offers many advanced features from a large dot matrix LCD that provides for an intuitive user interface in the operation of the meter, log on demand for storing readings, USB port for transferring data, GLP data for tracking calibration data, and Hanna’s exclusive CAL Check for pH calibration diagnostics. During the calibration process the meter analyzes the mV signal being generated and provides warnings to whether the probe needs to be cleaned or of the buffer is contaminated. After calibration the meter displays the overall health of the pH electrode as a percentage and is based on both the offset (mV value in pH 7 buffer) and slope (mV difference from pH 7 to pH 4/10) characteristics.

The HI981914 uses pH and ORP probes with a BNC connector. The BNC connector can be used with process probes for evaluation of their performance. For pH it is possible to set the meter to a “default” calibration that resets the meter to the ideal mV response for a pH probe. When this is done then it is possible to connect a pH probe and perform a calibration. CAL-Check will provide the diagnostic messages to indicate potential problems. For example if the meter display condition at 10% or flashing then it would be recommended to clean the probe. If after cleaning the probe and the condition remains low after a subsequent calibration then this would be an indicator that the probe is reaching it end of life. The probe characteristics can be reviewed using the GLP feature. An acceptable offset value is ±30 mV and the slope should be better than 90%. Values greater than ±60 mV or a slope less than 85% are indicators that the probe needs to be replaced in the near future to avoid a service calls due to probe failure or loss of control parameters.

For ORP probes the mV function and a 470 mV test solution is used to check the performance of an ORP electrode. A probe not reading correctly should be cleaned and the platinum sensor surface polished. If an acceptable value is not obtained then the ORP probe should be replaced.

The HI981914 can be used for process calibration as well in which the measurement is made with a calibrated pH probe or a measurement by an ORP probe and the value entered into a process controller to match the measured values.

On-Screen Features

Setup Screen
Our extensive setup screen features a host of configurable options such as time, date, temperature units and language for help screens and guides.

CAL Check Probe Diagnostics
Choose from seven standard pH buffers and five custom values to obtain up to five-point calibration and achieve high precision readings with a 0.001 pH resolution and a pH accuracy of ±0.002.


Comprehensive GLP functions are directly accessible by pressing the GLP key. Calibration data, including: date, time, offset, slope and buffers used in the last calibration can be reviewed.


Ergonomic, rugged, waterproof (IP67) design

pH CAL Check™

  • Alerts user to potential problems during calibration including when to clean electrode and possible buffer contamination.
  • Displays overall probe condition based on offset and slope after calibration

Five point pH calibration with seven standard buffers and five custom buffers

Five point ISE calibration with seven preprogrammed standard in choice of concentration

ISE direct concentration readout in a choice of concentration units

Automatic Temperature Compensation


  • Store measurement data at the press of a button


  • freezes reading on display upon stabilization

GLP features

  • GLP data including date, time, calibrated values, slope and offset (pH)

Calibration timeout to alert the user at a defined interval when the calibration has expired

Multiple language selection

200-hour battery life with battery level displayed on measurement screen

Menu driven for ease of use with virtual-key extended functionality

Contextual help at the press of a button

Backlit, graphic LCD

Meter displays a clock tag that will disappear when the reading has achieved stability

Battery Error Prevention System (BEPS)

  • Turns meter off when battery power is too low for an accurate measurement


  • PC connectivity via a sealed opto-isolated micro USB and HI92000 software

PRIMARY APPLICATIONS: Food & Beverage, Plating, Water and Wastewater, Chemical Manufacturing, Agriculture, and Environmental



SKU HI981914
Name Pool Line Professional Waterproof Portable pH/ ORP Meter - HI981914
pH Range -2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH
pH Resolution 0.1; 0.01; 0.001 pH
pH Accuracy ±0.1; ±0.002 pH
pH Calibration up to five point calibration, seven standard buffers available (1.68, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45) and five custom buffers
pH Input impedence 10¹² Ohms
mV Range ±2000 mV
mV Resolution 0.1 mV
mV Accuracy ±0.2 mV
mV Relative Offset ±2000 mV
ISE Range From 1.00 E-7 to 9.99 E10 concentration
ISE Resolution 3 digits 0.01, 0.1, 1, 10 concentration
ISE Accuracy ±0.5% of reading (monovalent ions)
±1% of reading (divalent ions)
Temperature Range -20.0 to 120.0 °C (-4.0 to 248.0 °F)
Temperature Resolution 0.1 °C (0.1 °F)
Temperature Accuracy ±0.4 °C (±0.8 °F) (excluding probe error)
Temperature Compensation manual or automatic from -20.0 to 120.0°C (-4.0 to 248.0°F)
pH Electrode HI72911B titanium body pH & temperature probe (included)
Logging Memory 300 records, log on demand (100 records per pH, mV, or ISE range)
Automatic Shut-Off 5, 10, 30, 60 minutes or disabled
Battery Type/Life 1.5V AA batteries / approximately 200 hours of continuous use without backlight (50 hours with backlight)
Environment 0 to 50 °C (32 to 122 °F); RH 100%, IP67
Dimensions 185 x 93 x 35.2 mm (7.3 x 3.6 x 1.4”)
Weight 400 g (14.2 oz)

HI981914 is supplied with HI72911B pH electrode with built-in temperature sensor, HI7662 temperature probe, HI7004M pH 4.01 buffer (230 mL), HI7007M pH 7.01 buffer (230 mL), HI7006014 general purpose cleaning solution sachets (20 mL x 3 pcs.), 100 mL plastic beakers (2 pcs.), 1.5V AAA batteries (4 pcs.), HI920015 micro USB cable, instrument quality certificate, and instruction manual packaged in a rugged thermoformed carrying case.

All prices are inclusive of GST and not all items are stock items, if you require an immediate solution please send an email to sales@hannainst.com.au or call us on (03) 9769 0666.

Free standard delivery: We offer free delivery within Australia on orders over $100, typically arriving within 5 to 7 days. Delivery times may vary depending on the courier service and the recipient's location. Free shipping is not available with other offers or discounts.

Same-day despatch: Place your order before 1 PM Monday to Friday for same-day despatch. Delivery times may vary depending on the courier service and the recipient's location. Subject to stock availability.

Please note that we do not offer shipping to PO Box addresses.

Additional information

pH Accuracy

±0.1; ±0.002 pH

pH Calibration

10.01, 12.45) and five custom buffers, 4.01, 6.86, 7.01, 9.18, seven standard buffers available (1.68, up to five point calibration

pH Range

-2.0 to 20.0; -2.00 to 20.00; -2.000 to 20.000 pH

pH Resolution

0.1; 0.01; 0.001 pH

Temperature Accuracy

±0.4 °C (±0.8 °F) (excluding probe error)

Temperature Range

-20.0 to 120.0 °C (-4.0 to 248.0 °F)