Saltwater Nitrate Low Range Checker The HI781 Marine Nitrate Low Range Colorimeter is designed to accurately determine low range nitrate levels in saltwater aquariums and marine applications. With a digital read out, there is no more struggling to determine colors visually. Range: 0.00 to 5.00 ppm (as NO3–) [0.0 to 50.0 ppm (calculated) using dilution]<br...

Reagent for phosphorus checker 25 tests 0 to 200&micro;g/L

phosphorus checker colorimeter Hanna Get accurate results for your saltwater aquarium with our simple handheld colorimeter. Our ultra low range phosphorus colorimeter brings you more precise technology from your typical chemical test kit. Standard test kits have limited accuracy since they rely on the user to match colors. Our handheld colorimeter makes your life...

Calibration checking set for HI&nbsp;772 Calibration checking set for Checker&reg;HC HI 713 KH.

Reagents for HI&nbsp;772 (KH) - 25 tests

KH checker colorimeter Hanna&nbsp;(dKH) Ideal for salt water aquariums and coral reef tanks. Designed exclusively for saltwater aquariums, the HI-772 checker offers a quick, easy and highly accurate method of measuring alkalinity in degrees of calcium hardness, commonly abbreviated as dKH. Checker&reg;HC is supplied with reagents for 25 tests. Use...

Calibration checking set for HI&nbsp;774 Calibration checking set for Checker&reg;HC HI 713 Phosphate ULR.

Reagents for HI 774&nbsp; - 25 tests

ULR PO4 checker colorimeter Hanna the HI774 Checker&reg; HC mini-photometer provides a simple, accurate and economical way to measure phosphates in marine systems, including coral reef aquariums. Phosphates are an important parameter to measure in aquaculture and aquaria; levels that are too high can lead to algal blooms and depleted oxygen depletion, which in turn...

pH 4 calibration solution 1 bag

pH 7 calibration solution

Reagents for Photometer series HI 93828