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.
With erupting concern over police brutality, law enforcement agencies are turning to body-worn cameras to collect evidence and protect police and suspects. But how do they work? And are they even really effective?
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.