Calibration Standard for HI 726 Checker HC ®
All Product
Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm
All Product
Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU
All Product
Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
All Product
Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
All Product
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.
All Product
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.
All Product
Range 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
All Product
Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
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HI700 Checker HC ® - Ammonia, LR 
HI761 Checker HC ® - Total Chlorine, ULR 
