HI93705-01 Silica – Reagents – 100 Tests

Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm

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

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.