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Hanna Instruments HI 991301 Portable pH, High Range EC, High Range TDS, and Temperature Meter is no longer available.

  • Automatic one or two point calibration
  • BEPS (Battery Error Prevention System) alerts the user in the event that low battery power could adversely affect readings
  • Multi-level LCD display; The meters display the current measurement simultaneously with the current temperature
  • Measure pH, EC/TDS and temperature with one probe
  • On-screen tutorial messages for calibration and setup
  • Battery % displayed on startup
  • HOLD; The HOLD button freezes readings on the display for manual recording
  • Easy to clean and keep clean
  • Automatic Temperature Compensation.
Click here for a larger image of the Hanna Instruments HI991301Click here for a larger image
Hanna Instruments HI991301 Shown

The Hanna Instruments HI 991301 Portable pH, High Range EC, High Range TDS, and Temperature Meter has been designed to offer you pH, conductivity, total dissolved solids and temperature measurements all in a slim, lightweight, portable unit. From purified to brine water measurement, you can select the meter which will work best with your range of conductivity for greater precision.

There are only 2 buttons, yet you can select from a range of calibration buffers and even the temperature scale (C or F) most familiar to you. The housing is waterproof and rated for IP 67 conditions.

The Hanna HI 1288 pre-amplified multiparameter probe features an easy to clean sensor and a cloth junction that can be pulled longer to increase the life of the probe. To ensure against interference from transient electrical noise, a solid-state amplifier is integrated into the HI 1288.

User selectable features include different TDS factors from 0.45 to 1.00 and a range of temperature coefficients (I2) from 0.0 to 2.4% for greater consistency and reproducibility. Standardized buffer recognition values are also selectable. The Hanna Instruments HI991301 easily fits in the palm of your hand and the bottom probe connection ensures the electrode cable doesn't get in your way. The large, multi-level LCD displays the primary reading, temperature and calibration guides simultaneously.

Ordering Information
Model Description Buy Online Price
HI991301  Hanna Instruments HI 991301 Portable pH, High Range EC, High Range TDS, and Temperature Meter Not Available
HI991301C  Hanna Instruments HI 991301C Portable pH/HR EC/HR TDS/Temperature Meter with Rubber Boot and Case Discontinued
See: HI991301
Included Accessories
  • 1 - HI 1288 Multiparameter Probe
  • 1 - HI 70004 pH 4.01 Buffet Solution Sachet
  • 1 - HI 70007 pH 7.01 Buffet Solution Sachet
  • 1 - HI 70031 1413 ┬ÁS/cm Calibration Solution Sachet
  • 1 - HI 70032 1382 mg/L (ppm) Calibration Solution Sachet
  • 1 - HI 700661 Electrode Cleaning Solution Sachet
  • 1 - Batteries
  • 1 - Rugged Carrying Case
  • 1 - Instructions
Optional Accessories
Calibration and Buffer Solutions
HI70007P Hanna Instruments HI 70007P pH 7.01buffer at 25°C, 25 Pack of 20ml Sachets Not Available
HI70300M Hanna Instruments HI 70300M Storage solution for pH/ORP electrodes, 0.23 Liter Not Available
HI7061M Hanna Instruments HI 7061M General Purpose Cleaning Solution for electrodes, 230 mL bottle Not Available