| Model Function | PH-1100 | PH-1200 |
| Range | 0.00~14.00pH | |
| Accuracy | ±0.1pH | |
| Temp.Comp. | Reference to 25 ℃, manual temperature compensation | |
| Oper. Temp. | 0~100℃ | |
| Sensor | Dual composite electrode | |
| Calibration mode | 4.00; 6.86; 9.18 Three-point calibration | |
| Display | 3½ Bit LCD | |
| Current output | — — — | isolation 4~20mA |
| Control output | — — — | High/low limit relay |
| Power | AC 110V±10% 50/60HzAC 220V±10% 50/60Hz | |
| Working environment | Ambient temperature: 0~50℃Relative humidity: ≤85% | |
| Dimensions | 48×96×100mm(H×W×D) | |
| Hole size | 45×92mm(H×W) | |
| Installation mode | Embedded |