• Waterproof
• Fast automatic temperature compensation with exposed temperature sensor
• Graphite sensors that reduce polarization effects
• Selectable EC to TDS conversion factors of 0.5 (500 ppm) and 0.7 (700 ppm)
• Automatic one-point calibration using Quick Cal standard or 1.41 mS/cm in standard calibration mode
• 250-hour battery life

• Conductivity range: 0.00 to 6.00 mS / cm
• Conductivity resolution: 0.01 mS / cm
• Conductivity accuracy: ± 2% FS
• TDS range: 0 to 3000 ppm (500 CF); 0 to 3999 ppm (700 CF)
• TDS resolution: 10 ppm (mg / L)
• TDS accuracy: ± 2% FS
• Temperature range: 0.0 to 50.0 °C / 32.0 to 122.0 °F
• Temperature resolution: 0.1 °C / 0.1 °F
• Temperature accuracy: ± 0.5 °C / ± 1 °F
• Temperature compensation: automatic from 0 to 50 °C (32 to 122 °F)
• TDS conversion factor: 0.5 (500 ppm) or 0.7 (700 ppm)
• Environment: 0 to 50 °C (32 to 122 °F); RH max 100%
• Dimensions: 160 x 40 x 17 mm (6.3 x 1.6 x 0.7 ")
• Weight: 75 grams (2.6 ounces)

Information: The HI98318 GroLine EC / TDS meter comes with a protective cap, (4) HI50036 Quick Calibration Sachets (20 ml), (1) CR2032 battery, instruction manual, and quality certificate.