YSI ProBOD [605780] Polarographic BOD Probe. DO/Temp 115V stirring BOD probe with 1-meter cable assembly. EPA approved for wastewater compliance reporting of BOD and CBOD. The Pro Series BOD Probe is used with the Pro20 and Professional Plus instruments. The ProBOD self-stirring BOD probes are designed to fit into standard U.S. style 300 mL BOD bottles with various funnels available for use with other tapers.