The test is based on the reaction of the cationic polyquat with an anionic polyelectrolyte using Toluidine Blue O as the indicator. The color change is blue to purple. Levels are determined using the drop count method. Range and Sensitivity is 1 drop = 1 ppm Polyquat.

This DEHA Test Kit tests for DEHA using the Octa-Slide 2 Comparator. Diethylhydroxylamine reacts with ferric iron to form ferrous iron, which is then measured by a standard iron test. Range and sensitivity is 0.05, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 1.5 ppm DEHA

Measure the Total Chlorine level from 0, 1, 5, 10, 20, 50 ppm, and pH from pH 4, 5, 6, 7, 8, 9, 10 in 15 seconds. These strips are packaged with 25 strips per bottle.

This Chlorine test kit measures for high ranges of Chlorine using Chlorine DPD tablets and the Octa-Slide 2 Comparator. Range/sensitivity is 1.0-10.0 ppm Cl.

This kit tests for Nitrate-Nitrogen using the LRC Comparator. Range/sensitivity is 0, 0.2, 0.4, 0.6, 0.8, 1.0 ppm NO₃-N.

This Salinity kit test for salinity using the Direct Reading Titrator method. Range and sensitivity is 0-40 ppt/0.4 ppt Salinity.

This Potassium Test Kit tests for potassium using a turbidity reading tube. Range and sensitivity is 10, 20, 30, 40, 60 ppm K⁺.

Sodium tetraphenylboron reacts with potassium to form a white precipitate. The turbidity of the solution is proportional to potassium concentration which is measured in a calibrated tube.

Minute amount of color permits immediate visual distinction of different buffer values.

This Chlorine test kit measures for Chlorine using the direct reading titrator method. Range/sensitivity is 0-10 ppm/0.2 ppm Cl.