HI93732-01 Dissolved Oxygen – Reagents – 100 Tests

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

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.