Quick Answer:
ODC uses external controller with touchscreen. 1DC has built-in controller for PLC integration. Same repeatability.
Both use the same fiber-optic sensing technology and achieve identical repeatability. The ODC Family requires an external controller (SCU5 or SCU6x) with a touchscreen interface—ideal for end users who want easy setup without programming. The 1DC Series has the controller built-in and connects via EtherNet/IP, PROFINET, EtherCAT, or Modbus/TCP—ideal for OEMs and users who prefer PLC integration. Pricing is similar between the two options.