OMEGA's new DOB21 is a compact benchtop dissolved
oxygen meter and an amperometric dissolved oxygen probe with automatic
temperature compensation for field or laboratory applications. It features a
RS232 output, auto calibration for all parameters, salinity and barometric
pressure compensation, and data logging up to 99 points. Programming is done
via a three-button keypad and stored in the non-volatile memory. This product
is ideal for testing biological samples, water and waste water, as well as
aquariums. Price starts at $1008.