Hanna Instruments
Digital water analysis with application-specific methods, ranges and reagents
Hanna Instruments produces portable and benchtop analytical equipment for measuring individual water-quality parameters or complete test profiles. The range includes colorimetric Checkers and photometers, electrochemical meters, probes, calibration solutions, standards and method-specific reagents.
Choose by application first, then confirm the exact parameter, method, range, resolution, unit and sample type. A marine checker is not automatically suitable for freshwater, while apparently similar nitrate, phosphate or ammonia results may be expressed in different chemical forms and units.
Build a complete Hanna testing method, not just an instrument list
- Match the instrument method to pond, freshwater, marine, pool or process water.
- Confirm range, resolution and displayed chemical form.
- Include the correct reagents, standards and cleaning supplies.
- Check calibration or CAL Check requirements.
- Record method, unit, time and sample conditions with every result.
Our practical view: Hanna’s catalogue includes meters, electrodes, reagents, standards and accessories that often look similar. We work from the full HI product code so you receive the instrument or consumable intended for the method.
Choosing Hanna Instruments from a measured water result
Hanna Instruments products in this section cover portable and benchtop meters, Checkers, photometers, electrodes, reagents, standards and test kits. The parameter name alone is not enough: low, medium and high ranges use different chemistry and calibration sets. Confirm the complete HI code, measurement range, sample type and whether the listing is an instrument, reagent refill or standard.
What to check before ordering
- Choose the parameter and expected range before choosing a meter.
- Match every reagent, electrode and standard to the exact HI model code.
- Plan calibration, cleaning, storage solution and replacement consumables.
Products you can compare in this section
Current examples include Hanna K-Type Thermometer – HI-935005, Hanna Bromine Portable Photometer – HI-97716, Hanna Pool Line pH Tester with Temperature – HI-981074, Hanna Copper High Range Calibration Check Set (2.00 ppm) for HI702 Checker – HI702-11 and Hanna HI-700 Ammonia Low Range Checker.
If you already own a Hanna instrument, send a photograph of its label and the old reagent code. That is the quickest way for us to prevent an expensive compatibility mistake.
Need to compare the wider range? Return to Water Testing and Purifiers for the surrounding product family.
Hanna Instruments Testing Guide
Optical and electrochemical instruments need different care
Photometers depend on clean optical paths, consistent cuvette orientation and precise reagent timing. pH, conductivity and other probe-based meters require the correct calibration, cleaning and storage regime.
Method identity matters as much as the parameter name
Low-range and high-range tests, marine and freshwater methods, and results reported as an ion or as elemental nitrogen or phosphorus cannot be substituted without checking the manual.
Standards make performance visible
Compatible certified standards or validation sets can help distinguish an instrument problem from sample preparation, reagent or timing error.
Related water-care categories for Hanna Instruments: Water testing & purifiers · Hanna Instruments · Seneye · Water purifiers · Dechlorinator units · Pond treatments
Hanna Instruments Frequently Asked Questions
These Hanna Instruments answers cover the recurring buying and testing questions we encounter. The exact instrument, reagent and application instructions still take priority.
What does Hanna Instruments make for water testing?
The range includes parameter-specific Checkers, multiparameter photometers, pH and conductivity meters, probes, monitors, reagents, calibration solutions and validation standards.
What is a Hanna Checker?
A Checker is a compact digital colorimeter designed for a defined parameter, method and measurement range. The exact model determines the sample procedure and compatible reagent.
Is a photometer more accurate than a visual colour test?
A photometer removes subjective colour matching, but reliable results still depend on using the correct method, clean cells, accurate sample volume, reagent timing and a result inside the specified range.
Can one Hanna instrument test every water parameter?
Some photometers support multiple programmed methods, while many Checkers and meters are parameter-specific. Compare the installed methods and required accessories.
What are Hanna CAL Check standards?
For compatible instruments, CAL Check standards provide a known reference used to validate optical performance. Follow the exact model procedure and certificate value.
Do Hanna reagents fit every Hanna photometer?
No. Reagent code, method, sample volume and instrument model must match. Similar parameter names do not establish compatibility.
What should I buy with a Hanna water tester?
Check whether reagents, cuvettes, calibration standards, storage solution, cleaning supplies, batteries and a carrying case are included or separately required.
How do I choose the right Hanna Instruments product?
For Hanna Instruments, define the sample type, expected concentration, reporting unit and confidence required before comparing compatible instruments, reagents and standards.
Why does the measurement range matter?
When testing Hanna Instruments, a result outside the method range may be invalid, while an unnecessarily broad range can hide useful detail at low concentrations.
Why must I record the unit with a water-test result?
A Hanna Instruments value is meaningful only with its unit, reporting form and method; similar-looking numbers can otherwise describe different results.
How can I improve repeatability when using Hanna Instruments?
For repeatable Hanna Instruments results, use a representative sample, clean equipment, accurate volume and consistent timing, and keep optical cells free from fingerprints and bubbles.
What should I do if a water-test result looks wrong?
If a Hanna Instruments result looks wrong, repeat a fresh sample, confirm the method and range, inspect the reagents and validate with a suitable standard or independent method where needed.
How should water-test reagents and standards be stored?
Store Hanna Instruments reagents and standards sealed, labelled and within the stated temperature and expiry limits, and protect them from contamination.
Can Hanna Instruments prove water is safe to drink?
No. A Hanna Instruments field test covers defined parameters only and cannot establish overall drinking-water or microbiological safety.
What details should I record with a test result?
With a Hanna Instruments result, record the date, time, sampling point, temperature where relevant, instrument, method, chemical form, unit and recent treatment or maintenance.
