Hanna HI98128 pHep 5 pH/Temperature Tester calibration

Hanna HI98128 pHep 5 pH/Temperature Tester calibration

The Hanna HI98128 pHep 5 pH/Temperature Tester calibration is Hanna’s advanced handheld pH and temperature tester, designed for professionals who demand high-resolution pH accuracy, fast response, and long-term durability. With its waterproof construction, floating design, and user-friendly calibration system, the HI98128 is ideal for applications in laboratory, agriculture, food production, water treatment, and field testing.

Key Features

• High-Resolution pH and Temperature Measurement
  This tester provides pH readings from -2.00 to 16.00 with a resolution of 0.01 pH and accuracy of ±0.05 pH. It also measures temperature from -5.0 to 60.0°C with 0.1°C resolution, offering precise dual-parameter monitoring.

• Automatic Temperature Compensation (ATC)
  The built-in ATC ensures that all pH measurements are automatically adjusted for temperature variations, improving reliability under different conditions.

• Advanced Calibration Options
  Users can perform automatic one- or two-point calibration with two memorized buffer sets:

  • pH 4.01 / 7.01 / 10.01

  • pH 4.01 / 6.86 / 9.18
    This flexibility supports both international and lab-specific standards.

• Waterproof, Floating Design
  Built to IP67 standards, the tester is completely waterproof and floats if dropped in water. Therefore, it’s perfect for use in harsh or wet environments.

• Long Battery Life with Auto-Off
  The HI98128 is powered by four 1.5V batteries, delivering up to 300 hours of continuous operation. The auto-off function conserves power by switching off the unit after 8 minutes of inactivity.

• BEPS Safety Feature
  The Battery Error Prevention System (BEPS) alerts users when battery levels are too low for reliable measurements, ensuring consistent accuracy.

Technical Specifications

• pH Range: -2.00 to 16.00 pH

• pH Resolution: 0.01 pH

• pH Accuracy: ±0.05 pH

• Temperature Range: -5.0 to 60.0°C / 23.0 to 140.0°F

• Temperature Resolution: 0.1°C / 0.1°F

• Temperature Accuracy: ±0.5°C / ±1°F

• Calibration: Automatic, 1 or 2 points with two buffer set options

• Temperature Compensation: Automatic

• Battery Type / Life: 4 x 1.5V / approx. 300 hours (with BEPS)

• Auto-Off: After 8 minutes of non-use

• Environment: -5 to 50°C (23 to 122°F); RH max 100%

• Dimensions: 163 x 40 x 26 mm

• Weight: 100 g (3.5 oz.)

Applications

• Laboratory and Research
  Ideal for field testing or quick lab verifications with high accuracy.

• Hydroponics and Agriculture
  Monitor pH levels in nutrient solutions or soil slurry for optimal plant health.

• Food and Beverage Processing
  Useful for pH verification in production lines and sanitation checks.

• Water and Wastewater Management
  Track pH variations in treatment processes and discharge monitoring.

• Environmental and Educational Use
  A convenient tool for environmental field testing or classroom demonstrations.