| Model | PH-220 |
| pH range | -2.00-16.00pH |
| pH accuracy | ±0.01pH |
| mV range | 0-±1999mV |
| mV accuracy | ±1mV |
| Temperature range | 0-100.0℃ or 32-212°F |
| Temperature accuracy | ±1.0℃, ±1.8°F |
| Temperature compensation | 0~100.0℃, 32-212°F |
| Calibration points | 2 points |
| pH standard solutions | NIST, pH4.00/6.86/9.18 or USA, pH4.01/7.00/10.01 |
| Memory | 50 |
| Output | USB |
| Power requirement | 9V/800mA battery |
| Display | 4.3-inch LCD |
| Dimensions | 185 x 88 x 32mm |
| Weight | 300g |
