In-Situ Aquaculture Buoy Manual (purchased after 28 May 2013) - Manual (Page 21)

21
Install Desiccant Pack
A desiccant pack is included in the kit. Place a desiccant pack inside the transceiver
housing, while taking care not to disturb the wiring connections.
Replace the desiccant pack before the indicator beads change
from blue to pink.
Figure 10.1 Desiccant pack installed in a transceiver box.