Hanna HI733 Ammonia High Range Checker for Freshwater

Name: That Pond Guy
Price range: $$$

Categories: Ammonia, Hanna Instruments, Water Testing and Purifiers

SKU: HI-733

Brand	Hanna Instruments
Model	HI-733
Sample type	Freshwater
Measurement	Ammonia, high range
Measuring range	0.0–99.9 ppm as NH₄⁺
Accuracy at 25°C	±1.0 ppm ±5% of reading
Display resolution	0.1 ppm
Method	Nessler colorimetric method
Starter tests	10
Power	1 × 1.5 V AAA battery

The HI733 is intended for higher ammonia concentrations in freshwater and wastewater applications. It reports 0.0–99.9 ppm expressed as NH₄⁺, with a 0.1 ppm display increment. That reporting scale is different from the NH₃-N scale used by some lower range ammonia Checkers.

Supplier dispatch: Supplied directly by Hanna Instruments. Supplier stock was shown as available at our latest check.

£102.82 (inc VAT)

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Hanna HI733 Ammonia High Range Checker for Freshwater

A specialist high range ammonia measurement

The HI733 is intended for higher ammonia concentrations in freshwater and wastewater applications. It reports 0.0–99.9 ppm expressed as NH₄⁺, with a 0.1 ppm display increment. That reporting scale is different from the NH₃-N scale used by some lower range ammonia Checkers.

Choosing the right measurement

A high range instrument is not automatically the best choice for low-level fish keeping checks. Select the range and chemical reporting basis that match your test plan, and compare readings only where the units and reported form agree. The HI700 is a separate low range freshwater option.

Technical overview

Specification	Details
Sample type	Freshwater
Measurement	Ammonia, high range
Measuring range	0.0–99.9 ppm as NH₄⁺
Accuracy at 25°C	±1.0 ppm ±5% of reading
Display resolution	0.1 ppm
Method	Nessler colorimetric method
Starter tests	10
Power	1 × 1.5 V AAA battery

What is included

HI733 Checker
Two cuvettes with caps
Starter reagents for 10 tests
Syringe with tip and plastic pipette
AAA battery, instructions and quick start guide

Reagents and optional accessories

HI733-25 is the dedicated refill code. HI733-11 is the separate instrument check set and is not included.

Care and reliable results

Follow the small-sample preparation, reagent quantities and timing in the exact HI733 instructions. Use the dedicated refill and keep the test chemicals and treated samples out of the pond or aquarium. Read the relevant safety data before use.

Compare related options

Hanna HI-700 Ammonia Low Range Checker

Further Hanna supplies and comparisons

Matching methods and supplies

Match the exact instrument and method. These are separate products; check the supplied contents before adding another item.

Hanna HI733-25 Ammonia High Range Reagents for HI733 — Match the full instrument code and analytical method. Reagents are separate from the instrument and from verification standards; no substitution by shared parameter name.

Care and method preparation

Cleaning, storage and sample preparation have different roles. Follow the instructions for the exact instrument and method.

Hanna HI731318 Cuvette Cleaning Cloths, 4 Pack — Cloths and cleaning liquid have separate optical-care roles. This is not an instrument-specific reagent, standard, mandatory extra or supplied-item promise.
Hanna HI93703-50 Cuvette Cleaning Solution, 230ml — Cloths and cleaning liquid have separate optical-care roles. This is not an instrument-specific reagent, standard, mandatory extra or supplied-item promise.