Portable PH Tester
TOB-PHB-4PH Meters portable ph testing equipment with 0-14 ph testing range. It is with 3 (optional) LCD backlight displays, With an automatic calibration function, The PH, mV, and temperature can display at the same time. With Manual compensation function （0.0～60.0）℃.
| Model | Portable PH Meter TOB-PHB-4 | |
| Testing parameter | pH、mV | |
| Testing range | pH | (0.00~14.00)pH |
| mV | （-1400～1400）mV | |
| Resolution | pH | 0.01pH |
| mV | 1mV | |
| Error | pH | ±0.03pH±1 |
| mV | ±0.2%（FS） | |
| Stability | （0.03pH±1）/3h | |
| Temperature compensation | Manual（0.0～60.0）℃ | |
| Source voltage | Two AA alkaline battery | |
| Dimension(L*W*H) | 170*75*30mm | |
| Weight | 0.5kg | |
| Warranty | One year limited warranty with lifetime support | |
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