Hanna HI98131 GroLine Combo waterproof

Hanna HI98131 GroLine Combo waterproof

The Hanna HI98131 GroLine Combo waterproof is a professional-grade, waterproof meter designed to provide accurate and simultaneous measurements of pH, electrical conductivity (EC), total dissolved solids (TDS), and temperature. Compact and easy to operate, it is ideal for hydroponics, agriculture, greenhouse management, and environmental monitoring.

Key Features

• 4-in-1 Measurement in One Device
  This compact tester conveniently combines four essential parameters—pH, EC, TDS, and temperature—saving time, space, and the need for multiple instruments.

• Optimized for Agricultural Applications
  Designed with the grower in mind, this tester includes both 500 CF and 700 CF TDS conversion modes, making it flexible for various nutrient monitoring standards.

• Accurate and Fast Results
  The HI98131 offers 0.01 pH, 0.01 mS/cm, and 10 ppm TDS resolution, ensuring precise readings. Additionally, automatic temperature compensation enhances measurement reliability in fluctuating environmental conditions.

• Easy Calibration Process

  • pH Calibration: Automatic, one or two-point using standard buffers (pH 4.01, 7.01, 10.01)

  • Quick Calibration Option: Allows simplified one-point calibration using Hanna’s Quick Cal solution, ideal for routine checks.

• Rugged and Waterproof Design
  The IP67-rated body is dust-tight and waterproof, making it perfect for fieldwork or greenhouse environments. Furthermore, the unit is lightweight and floats if dropped in water.

• Energy Efficient with Auto-Off
  Powered by four 1.5V batteries, the meter provides up to 100 hours of continuous use and automatically powers down after 8 minutes of inactivity to save energy.

Technical Specifications

• pH Range: -0.00 to 14.00 pH

• pH Resolution: 0.01 pH

• pH Accuracy: ±0.1 pH

• Conductivity Range: 0.00 to 6.00 mS/cm

• Conductivity Resolution: 0.01 mS/cm

• Conductivity Accuracy: ±2% F.S.

• TDS Range:

  • 0 to 3000 ppm (500 CF)

  • 0 to 3999 ppm (700 CF)

• TDS Resolution: 10 ppm

• TDS Accuracy: ±2% F.S.

• Temperature Range: 0.0 to 60.0°C

• Temperature Resolution: 0.1°C

• Temperature Accuracy: ±0.5°C

• Temperature Compensation:

  • pH: Automatic

  • EC/TDS: Automatic with fixed β = 1.9%/°C

• pH Calibration: Automatic, one or two-point using pH 4.01, 7.01, and 10.01 buffers or Quick Calibration

• Battery Type / Life: 4 x 1.5V batteries, approx. 100 hours of continuous use

• Auto-Off: After 8 minutes of inactivity

• Environment: -5 to 50°C; RH max 100%

• Dimensions: 163 x 40 x 26 mm

• Weight: 100 g (3.5 oz.)

Applications

• Hydroponics and Greenhouse Farming
  Monitor nutrient solution pH and TDS for optimal plant growth.

• Agricultural Irrigation
  Ensure irrigation water meets the right conductivity and pH conditions.

• Environmental Water Testing
  Use for quick field assessments of surface water, groundwater, or runoff.

• Educational and Laboratory Use
  Excellent tool for classroom demos or basic pH/EC/TDS lab testing.