Sondes deployed with ProbeGuard (bottom) and
without (top) for two months in Chesapeake Bay
Left: ProbeGuard unit
Right: ProbeGuard sampling chamber with probes
ProbeGuard saves all instrument data to nonvolatile memory that can be easily accessed over the communications port by an on-site user or remotely via an automated data collection system (telemetry) such as Green Eyes W2W.