| Model | Type | pH Range | Fill Solution | Sensor material | Working Temp. | Junction material | Reference Type | Dimension | Connector Type |
| PH-201-1 | pH composite electrode | 0～14 | unfillable | Polycarbonate | 5~60 ℃ | Single polyformalde-hyde (POM) | Ag/AgCl | Φ12×120 mm | BNC(Q9) |
pH Electrodes