
Section 2. Instrument Setup
For extended deployment time, lithium batteries are a good alternative to
alkaline batteries. Campbell Scientific sells a D-cell-sized battery spacer
(pn 21906) that allows lithium D-cell batteries to be used with the OBS-3A.
Lithium D-cell batteries have a higher voltage than their alkaline counterparts,
necessitating the spacer. Campbell Scientific does not sell lithium D-cell
batteries.
2-3
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