Reagents for HI 739 Checker HC ®, 25 Tests

Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution

Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution

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

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.