Unlike many Vernier sensors that have collection units changed by selecting the desired unit from the Experiment menu in Logger Pro or by tapping on the live reading of the meter screen when using LabQuest, the Optical DO Probe has a switch on the ca...
The table in the DO booklet and lab manuals only go up to certain elevations. The Excel file below contains approximate atmospheric pressures at various elevations and the saturated DO values for those elevations.
http://www2.vernier.com/til/2108/...
Use 30ml borosilicate glass vials with teflon PTFE lined caps (source: Cynmar Corporation, Item #115-27974, 12pack @ $11.00.) The diameter of the vials is big enough to accommodate the probes, unlike the BOD bottles, and they form a very good watert...