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.
Photometers
Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
Portable
Range 0:00 to 2:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution
Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
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
HI7075 Electrode filling solution 1.7M KNO3 + 0.7M KCl, 4 x 30 ml
HI96770-01 Silica HR - Reagents - 100 Tests
HI8936DN EC - Transmitter - 0.0 to 199.9 µS/cm
BL983322-1 EC Mini Controller, 0 to 19.99 µS/cm, 230V
BL981411-1 pH Mini Controller (Res 0.1pH) - 220V
HI717 Checker HC ® - Phosphate, HR
HI96802 Fructose - Digital Refractometer Portable
PCA 320 Online pH / Chlorine / °C - Analyzer / Controller
HI1001 Industrial-pH-Electrode "Flow-thru" Monitoring, PVDF BNC, 3 m Cable
HI98107 pHep pH -Tester (0.1 pH Resolution)
HI3833-050 - Reagents for CTK Phosphate
FC220B - pH Elektrode
HI775 Checker HC ® - Alkalinity in fresh water (dKH)