The REED R4500SD-Kit2 extends the hot-wire thermo-anemometer kit with an expandable tripod, allowing it to be positioned for unattended low-velocity airflow monitoring over extended periods. It retains the 16GB SD card, AC power adapter, and Type J/K thermocouple input for continuous data logging exportable to Excel. Well suited for HVAC/R servicing and ongoing condenser or chiller performance checks.