IN-SITU has introduced RDO Blue, the latest innovation in Optical Rugged Dissolved Oxygen technology, specifically designed for the aquaculture industry. RDO Blue uses patented technology, an EPA-approved dissolved oxygen measurement method ideal for measuring DO and temperature in even the harshest environments. Suitable for handheld use or long-term deployment in fresh water or saltwater, this low-maintenance and cost-effective probe requires no calibration or conditioning prior to deployment. The replaceable RDO Smart Sensor Cap stores calibration coefficients for error-free setup. Also, a Modbus/RS485 communication protocol supports easy integration with PLC systems and telemetry.