Reagents for HI 761 Checker HC ®, 25 Tests

The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.

Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm

Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution