RDO BLUE, Temperature and Dissolved Oxygen Probe

RDO® Blue uses In-Situ’s patented Optical Rugged Dissolved Oxygen 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 dissolved oxygen probe offers robust performance at a lower cost than other DO meters. RDO Blue requires no calibration or conditioning prior to deployment and doesn’t use membranes. The replaceable RDO Smart Sensor Cap stores calibration coefficients for automatic, error-free setup. And a unique, three-layer system provides unmatched chemical and abrasion resistance. The RDO comes in either a 3 meter or 10 meter cable and a bluetooth wireless communication/battery pack.  https://in-situ.com/pub/media/support/documents/RDO-Blue-Manual.pdf