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.
Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm
Photometers
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
All Product
Range 0:00 to 2:00 ppm | EPA method 340.1 | 0.01ppm resolution
Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
All Product
Range 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm
Portable
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.
Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
Photometers
Ideal for Aquaculture and Aquarium testing!
Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution
HI93738-01 Chlorine Dioxide - Reagents-Kit - 100 Tests
HI717 Checker HC ® - Phosphate, HR
BL983317-1 EC Mini Controller upto 10.00 mS/cm, 230V
HI98128 pH/°C-Tester (0.01 pH resolution) - waterproof
Reagents for HI 771 Checker HC ®, 25 Tests
HI758 Checker HC ® - MARINE Calcium
HI766TR1 K-Type, Long Penetration Probe
Reagents for HI 715 Checker HC ®, 25 Tests
HI93713-01 Phosphate LR - Reagents - 100 Tests
HI73127 Spare-pH-Electrode for Tester
HI8410 Dissolved Oxygen Controller with 4 to 20mA
HI740224 - 170 ml plastic beaker (6 pcs)
HI93723-01 Chromium VI HR - Reagents - 100 Tests
Checker® Plus pH Tester
HI38000 CTK Sulfate
HI713 Checker HC ® - Phosphate, LR