Reagents for HI 761 Checker HC ®, 25 Tests

Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm

The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.

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