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TPC-3000 
The Model TPC-3000 Total Precipitation Collector is a
state-of-the-art automated wet deposition sampler designed for remote operation. It consists of a
wet deposition collection bucket that is normally covered by a motor operated lid
during non-precipitation events. The user periodically visits the system
to recover its precipitation sample bag for off-site lab analysis. Its
software-controlled Opti-Grid™ precipitation sensor provides
reliable and repeatable
open/closed decisions, while ignoring false triggering from insects. It
represents a
major improvement over older technology that often missed the earliest
phases of light precipitation. As the earliest precipitation phases
tend to contain higher concentrations of pollutants, this lack of sensitivity
biased historical data. The TPC-3000 is also suitable for research on
chemical/biological (chem-bio) agent dispersion and emergency response
teams providing in-situ collection after a terrorist attack.
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