Hanna HI5221-03 Research Grade pH/ORP Meter

Hanna HI5221-03 Research Grade pH/ORP Meter

The Hanna HI5221-03 Research Grade pH/ORP Meter is a premium research-grade benchtop pH/ORP meter designed for advanced analytical applications where high accuracy, stability, and traceability are critical. With flexible calibration options, comprehensive mV measurement capabilities, and support for temperature compensation, this meter is ideal for laboratories that demand reliable and precise pH and ORP monitoring.

Features

• Wide pH Measurement Range
  Supports measurements from -2.000 to 20.000 pH, accommodating both extreme acidity and alkalinity.

• Selectable pH Resolution and Accuracy
  Users can choose resolution settings of 0.1, 0.01, or 0.001 pH, with corresponding accuracy up to ±0.002 pH ±1 LSD at 25°C.

• Multi-Point pH Calibration
  Up to five-point automatic calibration, using 8 standard buffer values and 5 custom buffers, ensuring precision across the entire measurement range.

• ORP Measurement Capability
  Supports oxidation-reduction potential (ORP) measurements within a broad ±2000 mV range, with 0.1 mV resolution and high accuracy (±0.2 mV ±1 LSD).

• Automatic or Manual Temperature Compensation
  Enhances measurement reliability across varying sample temperatures, from -20.0°C to 120.0°C.

• Relative mV Offset Adjustment
  Allows manual zero-point adjustment for comparative ORP analysis or system calibration.

• Research-Ready Design
  Ideal for integration into laboratory workflows that require compliance with GLP standards and rigorous repeatability.

Specifications

• pH Range:
  -2.0 to 20.0 pH
  -2.00 to 20.00 pH
  -2.000 to 20.000 pH

• pH Resolution:
  0.1 / 0.01 / 0.001 pH

• pH Accuracy (@25°C):
  ±0.1 / ±0.01 / ±0.002 pH ±1 LSD

• pH Calibration:
  Automatic, up to 5 points
  8 standard buffers: 1.68, 3.00, 4.01, 6.86, 7.01, 9.18, 10.01, 12.45
  5 custom buffers

• Temperature Compensation:
  Manual or automatic, from -20.0 to 120.0°C

• mV Range:
  ±2000 mV

• mV Resolution:
  0.1 mV

• mV Accuracy:
  ±0.2 mV ±1 LSD

• Relative mV Offset Range:
  ±2000 mV

Applications

The HI5221-03 is ideally suited for:

• Advanced Research Laboratories – high-precision analysis of complex chemical and biological systems.

• Environmental Monitoring – for ORP and pH tracking in field and lab settings.

• Industrial Process Control – ensuring pH stability in manufacturing, water treatment, or chemical production.

• Food & Beverage Testing – compliance with regulatory standards for pH and oxidation potential.

• Pharmaceutical and Biotech QA/QC – robust accuracy and calibration flexibility for sensitive applications.