| Model | 499ACL | Chlorine Sensor |
| Sensor Type | 01 | Free Chlorine |
| Transmitter compatibility | 54 | For use with Rosemount 1056, 56, 1066, and 5081 transmitters |
| Calibration and conformance certificates - optional level | EC | Electronic Calibration Certificate (sensor calibrated against factory instrument, with test data) |