Calcium ion selective electrode, Direct-Ion Combination, BNC connector
| Ion Selective Electrodes | QI508C |
| Concentration range (Mol/L) |
10-1 – 5 x 10-7 |
| Limits (ppm) | 4010 - 0.02 |
| pH range | 3.5 - 11 |
| Temp range (°C) | 0 - 50 |
| Main interferences | Ba2+, Al3+, Sr2+ |
| Calibration standard | QS977S |
| Recommended ISAB | QS977I |