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 | |
HI-772 - Marine Alkalinity (dKH) | 0.0 - 20.0 dKH | ±0.3 dKH ±5% of reading | - | - | - | dKH | ||
pH | HI-98108 pocket pHep+ pH Tester & °C | 0.0 - 14.0 | ±0.05 pH | - | - | - | pH | |
Phosphate / Phosphorus | HI-774 - Marine Phosphate Ultra Low Range (ULR) | 0 - 0.9 ppm | ±0.02 ppm ±5% of reading | - | - | - | ppm phosphorus | |
HI-736 - Marine Phosphorus Ultra Low Range (ULR) | 0 - 200 ppb | ±5 ppb ±5% of reading | - | - | - | ppb phosphorus | ||
- | - | - | ppm phosphate | |||||
HI-713 - Low Range Phosphate | 0 - 2.5 ppm | ±0.04 ppm ±4% of reading | - | - | - | ppm phosphorus |