YSI 200-BOD [609201] Stirring BOD Probe with 5 ft. Cable, 230V. The YSI 200-BOD is a self-stirring BOD probe produced exclusively for use with the YSI DO200 to create an affordable laboratory BOD system. The YSI 200-BOD probe is designed for use with the EcoSense DO200A dissolved oxygen meter. Offering a self-stirring paddle, this polarographic BOD probe fits standard 300mL BOD bottles. The BOD sensor uses a replaceable cap membrane for easy maintenance.