Hanna HI98191 Professional Waterproof

Hanna HI98191 Professional Waterproof Portable Meter – pH, ORP, and ISE Measurement in One Device

The Hanna HI98191 Professional Waterproof is a highly versatile, waterproof portable meter designed for precise pH, mV (ORP), and ion-selective electrode (ISE) measurements. Ideal for demanding laboratory or field environments, it combines high accuracy, intuitive operation, and advanced calibration options in a rugged IP67-rated enclosure.

Equipped with support for GLP compliance, USB data export, and a wide range of measurement resolutions, the HI98191 is a reliable tool for water quality professionals, researchers, and industry technicians who require portability without compromising precision.

Key Features

• 3-in-1 Measurement Capability
  Measures pH, ORP (mV), and ion concentration (ISE) in one compact, easy-to-use instrument.

• Wide pH Measurement Range with High Resolution

  • Range: –2.000 to 20.000 pH

  • Resolution: 0.1 / 0.01 / 0.001 pH

  • Accuracy: ±0.1 / ±0.01 / ±0.002 pH

  • Calibration: Up to five points with seven standard and five custom buffer options

• ISE Measurement Support

  • Concentration Range: 1.00E⁻⁷ to 9.99E¹⁰

  • Resolution: 3-digit selectable (0.01, 0.1, 1, 10)

  • Accuracy: ±0.5% (monovalent ions), ±1% (divalent ions)

  • Calibration: Up to five points with six standard solutions (0.1 to 10,000 ppm)

• ORP/mV Capability

  • Range: ±2000.0 mV

  • Resolution: 0.1 mV

  • Accuracy: ±0.2 mV
    Ideal for redox potential analysis and electrode diagnostics

• Comprehensive Temperature Compensation

  • Range: –20.0 to 120.0 °C

  • Accuracy: ±0.4 °C

  • Modes: Manual or automatic for all measurements

• GLP Compliance & Data Logging

  • Log up to 200 readings (100 pH + 100 mV)

  • GLP data tracking for calibration history and probe performance

• PC Connectivity via USB
  Opto-isolated USB interface for exporting data to a PC using HI92000 software (optional)

• Rugged and Waterproof
  IP67-rated body ensures protection in harsh field or laboratory environments. Fully sealed for use in high humidity or wet conditions.

• Extended Battery Life
  Powered by 4 x AA batteries with up to 200 hours of use (50 hours with backlight)

Technical Specifications

Applications

The HI98191 is ideal for:

• Water and Wastewater Treatment – Monitor pH, ORP, and ion concentrations (e.g., fluoride, ammonia, nitrate)

• Environmental Monitoring – Analyze surface water, groundwater, and soil slurries in the field

• Industrial Process Control – Measure redox potential and pH in electroplating, chemical baths, and QA procedures

• Laboratory Research – Versatile tool for multi-parameter pH/ORP/ISE studies

• Educational Institutions – Teaching pH, redox, and ion-selective measurements with real-time logging and GLP compliance