Ammonia Checker Why measure ammonia concentration in an aquarium? High ammonium values indicate disturbed or not yet fully balanced bacterial activity in the filter. Ammonia (NH3), forms from ammonium (NH4) at pH values above 7 and is particularly dangerous. Ammonia values of 0.02 mg/L are sufficient to cause long-term gill damage. [...]

Calibration checking set for HI 783 ( Magnesium )

Reagents for HI 782 (No3) - 25 tests

Saltwater Nitrate High Range Checker The HI782 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 to determine colors visually. • Measurements with a range up to 75.0ppm • Less...

Magnesium Hardness Checker HC The hardness or hydrometric titer (TH) of water essentially corresponds to the presence of calcium and magnesium salts. It is directly linked to the geological nature of the terrain crossed. A calcareous soil will give hard water while a granite soil will produce rather soft water. The total hardness represents the sum of the calcium and...

Pocket Water Resistant pH/ORP/°C HI98121 simultaneously measures pH, redox potential and temperature. Housed in a compact and perfectly waterproof case, it combines ease of use and measurement safety. When switched on, the instrument performs...

Pocket pHep4 Water Resistant pH Tester HI98107 Water resistant, accurate and portable, this handy little pocket meter is a true go anywhere pH tester with replaceable electrode. The HI-98127 has a dual LCD screen that...

Storage solution for electrodes (20ml) The HI703004 Solution is a storage solution prepared with quality chemicals that are used to maintain peak performance of your pH and ORP / Redox electrodes. It is important to store an electrode in solution in order to keep the glass electrode membrane hydrated. Ideally, a storage solution should be used; never store an...

Pocket pHep4 Water Resistant pH Tester HI98127 Water resistant, accurate and portable, this handy little pocket meter is a true go anywhere pH tester with replaceable electrode. The HI-98127 has a dual LCD screen that displays...

Calibration solution 35ppt Hanna Standard solution of 35 ppt for the calibration.

Hanna salinity tester The HI98319 Waterproof Salinity Tester is a simple, accurate and economical way to determine the salt concentration in saltwater aquariums. HI98319 can measure salinity up to 70.00 g / L (ppt). Results are displayed in g / L (ppt), practical units of salinity (PSU) or specific gravity (S.G.) on a large dual-level LCD display also...

Calibration checking set for HI 781 (No3)