Hanna HI98131 GroLine | Waterproof pH, EC, TDS & Temperature Combo Tester

The Hanna HI98131 GroLine Combo Tester measures pH, conductivity, TDS and temperature for hydroponic nutrient solutions, fertigation tanks, greenhouses and crop-production systems. Its rugged waterproof housing is designed for humid growing environments, allowing growers and technicians to check nutrient strength and acidity with one portable instrument.

The pH range is 0.00 to 14.00, while conductivity extends to 6.00 mS/cm. TDS can be displayed up to 3000 ppm using the 0.5 conversion factor or 3999 ppm using the 0.7 factor. Automatic temperature compensation helps maintain consistent results when nutrient temperature changes. The graphite conductivity probe is resistant to salt deposits, and the replaceable HI73127 pH electrode prevents disposal of the complete tester when the pH sensor becomes exhausted. Standard pH and EC calibration can be performed separately, or Hanna Quick Cal solution can calibrate both parameters through one simplified procedure.

Nutrient Testing Tip: Measure the mixed nutrient solution after circulation, then compare pH and EC with crop-stage targets before making corrections. Buy Hanna HI98131 GroLine from Kamadi Pakistan for efficient hydroponic monitoring, genuine accessories and professional support.

Hydroponic Nutrient Tester Selection Guide

Choose the HI98131 for hydroponics, fertigation and greenhouse nutrient solutions requiring EC up to 6.00 mS/cm. Quick Cal compatibility makes it especially convenient for growers performing frequent pH and conductivity checks.

Key Features

• Measures pH, EC, TDS and temperature
  
• Designed for hydroponic and greenhouse environments
  
• Quick Cal option for combined pH and EC calibration
  
• Graphite EC/TDS probe with automatic compensation
  
• Waterproof floating body with replaceable pH cartridge
  

Technical Specifications

• Model: HI98131
  
• Product Type: GroLine Multiparameter Pocket Tester
  
• pH: 0.00–14.00; 0.01 resolution; ±0.1 accuracy
  
• Conductivity: 0.00–6.00 mS/cm; 0.01 mS/cm resolution; ±2% FS
  
• TDS: 0–3000 ppm at 0.5 CF / 0–3999 ppm at 0.7 CF
  
• Temperature: 0.0–60.0°C; 0.1°C resolution; ±0.5°C
  
• pH Calibration: Automatic one or two points, or Quick Cal
  
• EC Calibration: 1.41 or 5.00 mS/cm, or Quick Cal
  
• Temperature Compensation: Automatic with 1.9%/°C coefficient
  
• Electrode / Power: Replaceable HI73127 / four 1.5V batteries

Applications

• Hydroponic nutrient tanks
  
• Greenhouse fertigation systems
  
• Aquaponics monitoring
  
• Horticulture and crop production
  
• Agricultural water testing