HI93751-01 Sulfate – Reagents – 100 Tests

Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution

Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU

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.

The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 764 Checker®HC, press the button and read the results. It’s that easy.