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$ 9.99
Reagent kit for 25 Marine Alkalinity Tests Range: 0.00 to 250 mg/L
$ 49.99
$ 49.99
$ 19.98
Reagent kit for 30 Marine Calcium Tests The reagent has a part A (liquid) and part B (powder).
$ 49.99
Quickly measure your aquarium water for the pollutant, phosphate.
Digital phosphate meter for testing aquarium water.
Handheld colorimeter for accurate phosphate measurement
Enjoy fast, accurate AND affordable testing of the aquarium pollutant, phosphate.
Hanna Instruments Checker HC Low Range Phosphate Meter is easier to use and more accurate than conventional chemical test kits.
Measure phosphate with this hand-held colorimeter simply by zeroing the instrument, adding the reagent to your sample water and placing the vial into the Low Range Phosphate Meter.
Press the button and read the results for easy phosphate measurement.
Priced right, this palm-sized pocket photometer measures up to 2.50 ppm phosphate with ±0.04 ppm accuracy.
Measure and maintain phosphate levels for clean, clear aquarium water.
The battery-operated Hanna Instruments Checker HC Low Range Phosphate Meter measures 2.4" x 3.2 high and only 1.5" thick.
Supplied complete with two sample cuvettes and caps, six low range phosphate powder reagent packets, one 1.5V AAA battery and instruction manual.
$ 49.99
Quickly measure your aquarium water for the pollutant, phosphate.
Digital phosphate meter for testing aquarium water.
Handheld colorimeter for accurate phosphate measurement
Enjoy fast, accurate AND affordable testing of the aquarium pollutant, phosphate.
Hanna Instruments Checker HC Ultra Low Range Phosphorus Meter is easier to use and more accurate than conventional chemical test kits.
Measure phosphate with this hand-held colorimeter simply by zeroing the instrument, adding the reagent to your sample water and placing the vial into the Low Range Phosphate Meter.
Press the button and read the results for easy phosphate measurement.
Priced right, this palm-sized pocket photometer measures up to 200 ppb phosphorus with a ±1 ppb accuracy.
Measure and maintain phosphate levels for clean, clear aquarium water.
The battery-operated Hanna Instruments Checker HC Low Range Phosphate Meter measures 2.4" x 3.2 high and only 1.5" thick.
Supplied complete with two sample cuvettes and caps, six low range ULR phosphorus powder reagent packets, one 1.5V AAA battery and instruction manual.
$ 37.89
The pH Checker® series supplies users with fast and accurate readings from 0 to 14 pH with a resolution of 0.01 pH. This compact tester features an easy to read LCD and simple to perform two point calibration.
The pH electrode of the Checker® can be easily replaced. You only need to unscrew the electrode from the meter body and screw on a new one.
The Checker® is fast, accurate, lightweight and with 3000 hours of battery life, you don't have to worry about frequent battery replacement.
$ 9.99
The Hannah Instruments Phosphate Low Range Checker® Reagents are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphate Low Range Checker® HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphate and reagent causes a blue tint in the sample. By simply adding the packet of HI713-25 reagent to the sample, the reaction will take place and the HI713 will determine the concentration from the color that is produced. The results will be displayed in ppm (mg/L) of phosphate. These reagents are designed to be used with samples that have an expected range of 0.00 to 2.50 ppm phosphate.
$ 9.99
The HI736-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphorus Ultra Low Range Checker® HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI736-25 reagent to the sample, the reaction will take place and the HI736 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus.