Range 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
Photometers
Range 0.0 - 30.0 ppm | amino acid method | Resolution 0.1ppm
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 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
Portable
Range 0.0 - 99.9 ppm NH3-N | Nessler Method | 0.1ppm resolution
Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
Photometers
Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb
Range 0 - 600 ppb NO2-N | EPA method 354.1 | Resolution 1 ppb
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.
Portable
Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU