Reagents for HI755-26 Alkalinity reagents The HI-755-26 are the liquid reagents for the HI-755 Alkalinity Checker® HC (25 tests). The HI-755-26 are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements...

Reagents for HI755-26 Alkalinity reagents The HI-755-26 are the liquid reagents for the HI-755 Alkalinity Checker® HC (25 tests). The HI-755-26 are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements...

The HI-782-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Nitrate colorimeter, HR Checker® HC.

Salinity Tester - digital Salinity Tester Our new HI-98319 waterproof salinity and temperature Tester is perfect for any Saltwater aquarium. A more accurate alternative to refractometers, this Tester uses conductivity to determine salinity levels of...

20 ML BAG 35 ppt calibration solution for the calibration of salinity testers

The easy to use Checker plus is a real favorite with students and researchers due to its clear LCD display and long thin pH electrode. The checker offers automatic calibration and buffer recognition, calibrated buffer...

Hanna Checker - Phosphate ULR Colorimeter The Hanna Phosphate checker ULR is an awesome little tool that will give you accurate easy to read results. If you have bad eyes or have a hard time...

Three simple steps to results. The Hanna Alkalinity Checker Bridges the gap between simple chemical test kits and professional instrumentation. Accurate, affordable and easy to use. First, zero the instrument with your water sample. Next,...

The HI-782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for Saltwater aquariums and marine applications. With a digital read out, there is no more struggling...

Reagents for HI755-26 Alkalinity reagents The HI-755-26 are the liquid reagents for the HI-755 Alkalinity Checker® HC (25 tests). The HI-755-26 are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements...

HI-784-25 Marine Ammonia reagents, 25 tests, for use with the HI-784 Marine Ammonia Handheld Colorimeter Checker.

Hanna Checker - Calcium Colorimeter Ideal for salt water aquariums and coral reef tanks. Designed exclusively for Saltwater aquariums, the HI-758 offers a quick, easy and highly accurate method of checking Calcium. For replacement reagents...

HI-783-25 Marine Magnesium reagents, 25 tests, for use with the HI-783 Marine Magnesium Handheld Colorimeter Checker.

Reagents for HI755-26 Alkalinity reagents The HI-755-26 are the liquid reagents for the HI-755 Alkalinity Checker® HC (25 tests). The HI-755-26 are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements...

The HI-780-25 is the replacement reagents for the HI-780 Marine pH Checker® HC. These high-quality reagents are clearly marked with the lot number and expiration date on the dropper bottle for traceability.

Hanna Marine Master Photometer Kit HI-97115C Professional multi-parameter photometer for marine aquariums and field use. The HI-97115C combines eight essential tests into one waterproof, wireless device. Ideal for monitoring coral reef health, fish systems, and...

Each HI-783 is delivered in a case with a custom insert and is supplied with: Sample cuvette and cap (2 pcs.) Marine Magnesium reagent starter kit (reagents for 25 tests) 1 mL graduated syringe and...

Testing and monitoring salinity in saltwater aquariums is an ongoing task. The HI-981520 Marine Monitor is the ideal solution for aquarists looking to continuously monitor salinity levels in aquariums, seawater, or aquaculture.  pH  Temperature  Salinity...

Each HI-784 is delivered in a case with custom insert and is supplied with: Marine Ammonia reagent starter kit (reagents for 10 tests). Please download the Safety Datasheet(s) which provide more detail on the reagents...

The pH of ocean surface water is normally 7.5 to 8.5 pH. Over the years, however, the acidification tendency is to decrease 0.1 to 0.2 pH units/century. Acidification is a consequence of carbon dioxide (CO...