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Hanna HI-98129 pH/EC/TDS & Temperature Combo Tester
The Hanna HI-98129 Combo pH/Conductivity/TDS Tester is an innovative, lightweight, and waterproof handheld unit designed to simplify your routine water quality measurements. This highly accurate device offers pH, low range Electrical Conductivity (EC), Total Dissolved Solids (TDS), and temperature measurements all in one compact unit, eliminating the need to switch between multiple meters. Its robust design ensures it will float if accidentally dropped in a sample, guaranteeing durability even in demanding environments.
Key Features
• Multi-Sensor Functionality: Equipped with three sensors in a single meter – a pH electrode with an extractable junction, an amperometric EC/TDS sensor, and an exposed temperature probe for rapid EC/TDS readings.
• Waterproof and Floating Design: Built to withstand humid environments and designed to float, providing reassurance if dropped in water.
• Replaceable pH Electrode: Features an easy-to-replace pH electrode cartridge (HI73127 included) with an extendable cloth junction, which helps to increase electrode life and ensures the tester does not need to be discarded when the pH sensor is exhausted. The sturdy, snap-in connector means there are no pins to bend or break.
• Automatic Temperature Compensation (ATC): All pH, EC, and TDS readings are automatically temperature compensated to prevent temperature-related variations, ensuring highly accurate results. Temperature can be displayed in either Celsius (°C) or Fahrenheit (°F).
• Selectable EC to TDS Conversion Factor: Users can choose between a 0.45 or 1.0 conversion factor for EC/TDS readings, as well as adjust the temperature compensation coefficient β (BETA).
• User-Friendly Interface: Features an easy-to-read LCD display, a HOLD button to freeze readings for easy recording, and a stability indicator (clock tag) that disappears when a stable reading is achieved.
• Intelligent Battery Management: Includes a Battery Error Prevention System (BEPS) that automatically shuts off the meter if there isn't enough power for accurate measurements. It also displays the battery percentage level at startup and features a low battery indicator when the level drops below 5%.
• Automatic Shut-off: The auto-off feature automatically turns off the meter after 8 minutes of non-use to maximise battery life.
Advanced Technology and Probes
The HI-98129 incorporates sophisticated components to ensure superior performance. Its high accuracy EC/TDS graphite probe is designed to provide greater accuracy because it cannot be contaminated by salt deposits in the solution. The exposed temperature sensor enables fast response times and guarantees highly accurate temperature-compensated readings for all parameters.
Applications
This versatile combo tester is ideal for a wide range of applications, including:
• Drinking Water Quality Monitoring: Ensuring water is safe and palatable.
• Agriculture and Hydroponics: Critical for plant growth and nutrient availability in soil and solutions.
• Aquaculture and Aquariums: Maintaining optimal water conditions for aquatic life, including reef tanks and RODI water.
• Environmental Monitoring: Assessing water bodies and ecosystems.
• Laboratories and Quality Control: For routine measurements and precision testing in various settings, including schools.
Technical Specifications
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Parameter
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Detail
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SKU
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HI98129
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Parameters Measured
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pH, Electrical Conductivity (EC), Total Dissolved Solids (TDS), Temperature
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pH Range
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0.00 to 14.00 pH
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pH Resolution
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0.01 pH
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pH Accuracy
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±0.05 pH
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pH Calibration
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Automatic, one or two points with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or pH 4.01 / 6.86 / 9.18)
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pH Temperature Compensation
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Automatic
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EC Range
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0 to 3999 µS/cm
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EC Resolution
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1 µS/cm
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EC Accuracy
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±2% F.S.
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EC Calibration
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Automatic, one-point at 1413 µS/cm
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TDS Range
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0 to 2000 ppm (mg/L)
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TDS Resolution
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1 ppm (mg/L)
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TDS Accuracy
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±2% F.S.
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TDS Calibration
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Automatic, one-point at 1382 ppm (mg/L)
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EC/TDS Temperature Compensation
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Automatic with β adjustable from 0.0 to 2.4% / °C
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EC to TDS Conversion Factor
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Selectable from 0.45 to 1.00
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Temperature Range
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0.0 to 60.0°C / 32.0 to 140.0°F
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Temperature Resolution
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0.1°C / 0.1°F
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Temperature Accuracy
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±0.5°C / ±1°F
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pH Electrode
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HI73127 (replaceable; included)
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Battery Type/Life
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4 x 1.5V (button cell) / approx. 100 hours of continuous use
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Automatic Shut-Off
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After 8 minutes of non-use
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Operating Environment
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0 to 50°C (32 to 122°F); RH max 100%
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Dimensions
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163 x 40 x 26 mm (6.4 x 1.6 x 1.0 inches)
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Weight
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100 g (3.5 oz.)
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Supplied With
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HI73127 pH electrode, HI73128 electrode removal tool, 4 x 1.5V batteries, instruction manual. Also includes: HI70004 pH 4.01 buffer solution (1 sachet), HI70007 pH 7.01 buffer solution (1 sachet), HI70300N Storage solution for pH & ORP electrodes (1 sachet), HI70031 1413 µS/cm conductivity standard (1 sachet), HI70032 1382 ppm TDS standard (1 sachet), HI700601 pH & ORP electrode cleaning solution (1 sachet), and Instrument quality certificate.
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|
Warranty
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1 year (meter), 6 months (electrode)
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Product overview
Key features
Applications
Specifications
Applications
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