Specification :

The 9500 is a research meter designed for use in a number of
applications including fish farming/ breeding, all forms of
aquaculture, environmental analysis, pollution control and effluent
management. The 9500 includes powerful data logging capabilities
with the ability to store 250 DO2 readings either manually, at timed
intervals or on alarmed events. The 9500 also includes full support
for the BOD5 day test protocol and has the ability to store up to 25
BOD data sets, each with up to 10 samples.