Calibration Standard HI 729 Checker HC ®

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

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.

Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution