FTS SDI Sampler Interface was developed to provide an SDI control interface with ISCO’s Portable Samplers. Connecting to the Flow Meter port, the interface permits direct SDI sampling control from FTS’ dataloggers using standard SDI commands. Sophisticated datalogger sample triggering algorithms drive strategic event/parameter based sampling that optimizes the temporal distribution of samples. Sampler bottle slot positions, are returned for datalogging and monitoring of the Sampler’s status. Combined with StreamTrac tools, automated sample bottle mapping is error proof, significantly eliminating time consuming and error prone manual data handling schemes.