- 25 mm DO Sensor: Model D400 & Model D405
- 25 mm Braun DO Sensor for Braun vessels: Model D430 & Model D435
- 25 mm, DO Sensor with Sanitary Flange: Model D470 & Model D475
- 12 mm DO Sensor: Model D140& Model D145
- 19 mm DO Sensor: Model D200 & Model D205
- 25 mm DO Sensor: Model D210 & Model D215