Hanna Instruments - Water-Testing
The Hanna Instruments HI98107 pHep is a pocket-sized digital pH meter used by koi keepers and pond professionals for accurate pond water pH measurement. It provides results in 0.1 pH unit increments, is calibrated with the included buffer solution, and replaces the inaccurate color-comparison pH test kits common in pond care. The slim probe design works well for sampling directly from a pond edge or sump.
$25 - $45 USD
| Range | 0 to 14 pH |
| Resolution | 0.1 pH |
| Accuracy | Plus or minus 0.2 pH |
| Calibration | Manual, with included buffer |