Calibration Standard for HI 726 Checker HC ®
All Product
Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
All Product
Range 0 - 20 ppm | ESPA method | Resolution 0.1ppm
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 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
All Product
Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution
All Product
Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L
All Product
Range 0.0 - 99.9 ppm NH3-N | Nessler Method | 0.1ppm resolution
All Product
Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm
081-855-1842
02-541-4199
HI717 Checker HC ® - Phosphate, HR 
HI723 Checker HC ® - Chromium VI, HR 
