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The HI83303 Multiparameter photometer for aquariums and ponds measures no less than 12 parameters for water quality of aquariums and ponds.
The complete HI83326 Multiparameter photometer for swimming pool and spa measures the 11 most important parameters for swimming pools.
For swimming pools, spas and aquaculture
The HI764-25 are the replacement reagents for the HI764 Nitrite Ultra Low Range Checker HC.
HI767-25: Nitrite Low Range Saltwater Checker reagents, 25 pieces
HI7007L Calibration Buffer Solution pH 7.01 - Bottle 500 ml
The HI98198 Optical Dissolved Oxygen Meter makes measuring the concentration of dissolved oxygen hassle-free.
HI70024P Calibration Solution Salinity 35.00 ppt for the HI98319 Salinity Tester in Seawater
HI7031L Conductivity Calibration Solution 1413uS/cm
The HI96822 is a portable digital refractometer to determine the salt content (salinity) in natural or artificial sea water and brackish water.
HI767 Checker photometer for Nitrite LR in Saltwater starter kit with reagents and 2 cuvettes
HI991301 Water-resistant pH / EC / TDS and temperature Meter
The HI98120 is a waterproof ORP and temperature handheld meter.
Second chance - With the HI720 Checker photometer for Calcium Hardness LR you can quickly measure the calcium hardness in the field.
HI73127 pH electrode for the Hanna Instruments pH testers
HI758-26: Marine Calcium Checker reagents, 25 tests
The HI 98190 is a user-friendly instrument with a large graphic and illuminated display.
The HI98168 is a rugged, waterproof and portable meter for pH and temperature in soil directly or in soil samples and slurries.
The HI801 Spectrophotometer is the only one of its kind. This portable and compact meter makes measurements possible within the entire spectrum of visible light.
This pocket-sized photometer is specially designed for the determination of alkalinity or KH in fresh water.
This pocket photometer has been specially designed for the determination of calcium in salt water
The HI97733 Pocket photometer for ammonia HR has a high accuracy and is extremely intuitive.
The HI991003 Water-resistant Portable pH / mV / ORP meter is suitable for pool water, spa water, waste water, drinking water and various other applications.