HI93732-01 Dissolved Oxygen – Reagents – 100 Tests

Range 0 - 20 ppm | ESPA 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.