HI93719-01 Hardness Magnesium – Reagents -100 Tests

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

Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm

Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L

The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.