Product Review: Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
The Instrument Choice team of scientists regularly reviews new and popular products, so you can make more informed decisions when searching for the perfect scientific instrument for your application.
This edition reviews the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester, a waterproof, handheld tester that measures four key water quality parameters and offers unbeatable accuracy.
About Hanna Instruments
Hanna Instruments designs and manufactures an extensive assortment of scientific products across many industries, including; food & beverage, laboratories, hydroponics, aquaculture, and wastewater.
Introducing the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
Hanna Instruments’ HI98129 combination pH, EC, TDS and temperature tester is one of the most popular budget testers offered stocked by Instrument Choice. This powerful pocket-sized meter accurately determines four critical water quality indicators: pH, electrical conductivity (EC), TDS, and temperature.
Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester Features & Benefits
- Effortlessly efficient: The HI98129 features an intuitive two-button operation that ensures ease of use.
- Excels in demanding environments: The Hanna Instruments HI98129 pH Conductivity and TDS Tester is waterproof and designed for measurements in harsh environments. Further, it will float on water if accidentally dropped!
- One meter, many measurements:Forget switching between meters for your routine measurements – the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester boasts three sensors in a single tester that allow you to take multiple measurements. The three onboard sensors are;
- A replaceable pH electrode
- An amperometric EC/TDS sensor; and
- An exposed temperature sensor.
- Highly accurate: All readings are compensated for temperature variations to ensure precise measurements.
- Battery saver: The Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester automatically switches off after 8 minutes of non-use to preserve battery life.
- Hold function: The hold button freezes your reading on the LCD for easy recording of measurements.
- Handy stability indicator: The on-screen stability indicator lets you know when your reading has achieved stability.
- Versatile measurement options: Select an EC to TDS conversion factor of 0.45 to 1.00 to suit your measuring requirements.
- Reliable pH electrode: An innovative extendable cloth junction prolongs the life of the pH sensor.
Figure 1 Replacement pH sensor for the Hanna Instruments
HI98129 Waterproof pH Conductivity and TDS Tester - Replaceable sensor: If the pH electrode becomes damaged or as the electrode degrades over time, it is easily user-replaceable at a fraction of the cost of a complete meter. View the replacement electrode here.
- Peace of mind: The BEPS (battery error prevention system) prevents errors by automatically switching off the meter with insufficient power to get an accurate measurement.
- Scope of supply: Supplied with everything required to get started taking water quality measurements, including:
- 1 x Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
- 1 x 20 mL sachet of pH 4.01 buffer solution
- 1 x 20 mL sachet pH 7.01 buffer solution
- 1 x 20 mL sachet storage solution for pH & ORP electrodes
- 1 x 20 mL sachet 1413 μS/cm conductivity standard
- 1 x 20 mL sachet 1382 ppm TDS standard
- 1 x 20 mL sachet pH & ORP electrode cleaning solution
- 1 x HI73127 pH electrode
- 1 x HI73128 Electrode removal tool
- 4 x 1.5V batteries
- Instrument quality certificate; and
- Instruction manual.
Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester Specifications
pH Specifications |
|
|
Range |
0.00 to 14.00 pH |
|
Resolution |
0.01 pH |
|
Accuracy (@25°C) |
± 0.05pH |
|
Calibration |
Automatic, one or two-point with two sets of standard buffers (pH 4.01 / 7.01 / 10.01 or 4.01 / 6.86 / 9.18) |
|
pH Temperature Compensation |
Automatic |
EC Specifications |
|
|
Range |
0 to 3999 μS/cm |
|
Resolution |
1 μS/cm |
|
Accuracy |
± 2% F.S. |
TDS Specifications |
|
|
Range |
0 to 2000 mg/L (ppm) |
|
Resolution |
1 mg/L (ppm) |
|
Accuracy |
± 2% F.S. |
|
TDS Calibration |
automatic, one point at 1413 μS/cm or 1382 mg/L (ppm) |
Temperature Specifications |
|
|
Range |
-5.0 to 60.0°C |
|
Resolution |
0.1°C |
|
Accuracy |
±0.5°C |
General Specifications |
|
|
Temperature Correction Coefficient |
automatic with у adjustable from 0.0 to 2.4% / °C |
|
EC to TDS Conversion Factor |
0.45 to 1.00 |
|
pH Electrode |
HI73127 (replaceable; included) |
|
Automatic Shutoff |
Auto-off after 8 minutes of non-use |
|
Battery Type / Life |
1.5V (4) / approx. 100 hours of continuous use |
|
Environment |
0 to 50°C; RH max 100% |
|
Dimensions |
163 x 40 x 26 mm |
|
Weight |
100 g |
Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester Applications
Straightforward to use and reliable, the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester is ideal for applications in:
- Laboratories
- Food processing
- Agriculture
- Aquaculture
- Aquariums
- Cooling towers
- Hydroponics; and
- Water and wastewater treatment.
Conclusion
What do our scientists conclude about the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester?
“Efficient, accurate, portable and affordable, the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester does everything you need a water quality tester to do... and more!”
Need more information on the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester? Speak with an Instrument Choice Scientist! Call 1300 737 871 or email [email protected].
Videos: Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
Unboxing the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester HI98129 pH, Conductivity and TDS Tester
How to Calibrate pH And EC on the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
How to Change the pH Electrode on the Hanna Instruments HI98129 Waterproof pH Conductivity and TDS Tester
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