LI-7550 Analyzer Interface Unit (optional)

Provides data storage with a removable USB flash drive, and data output via Ethernet, SDM, RS-232, six DAC outputs for connecting to a data logger. Also includes four additional differential voltage inputs.

7550-101 Auxiliary Sensor Interface (optional)

Seven auxiliary inputs (four general ±5 V for a sonic anemometer and three type E thermocouple channels). The 7550-101 provides a weather resistant terminal strip for connecting external sensors.