Tesk Kit Calculators

Hanna Checkers

Test Model Scale Advertised
Accuracy
Checker
Reading
Possible Range
of Actual Value
Low Center High
Alkalinity HI-755 - Marine Alkalinity (ppm) 0 - 300 ppm ±5 ppm   ±5% of reading
 ppm
- - - ppm
HI-772 - Marine Alkalinity (dKH) 0.0 - 20.0 dKH ±0.3 dKH   ±5% of reading
 dKH
- - - dKH
pH HI-98108 pocket pHep+ pH Tester & °C 0.0 - 14.0 ±0.05 pH
 pH
- - - pH
Phosphate / Phosphorus HI-774 - Marine Phosphate Ultra Low Range (ULR) 0 - 0.9 ppm ±0.02 ppm   ±5% of reading
 ppm
- - - ppm phosphorus
HI-736 - Marine Phosphorus Ultra Low Range (ULR) 0 - 200 ppb ±5 ppb   ±5% of reading
 ppb
- - - ppb phosphorus
- - - ppm phosphate
HI-713 - Low Range Phosphate 0 - 2.5 ppm ±0.04 ppm   ±4% of reading
 ppm
- - - ppm phosphorus