Calibration Standard for HI 723 Checker HC ®
All Product
The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.
All Product
Range 0:00 to 5:00 ppm | EPA Method 315 B | 0.01ppm resolution
All Product
Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.
All Product
Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
All Product
Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
All Product
Reagents for HI 755 Checker HC ®, 25 Tests
All Product
Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm
081-855-1842
02-541-4199
HI38020 CTK Chlorine Free & Total 
HI764 Checker HC ® - Nitrite, ULR 
HI739 Checker HC ® - Fluoride. HR 
