Bottom cover of the WrenDAQ2. The weatherproof connector on the left is for connecting the external temperature sensor, anemometer, and RPM sensor. The middle feedthru is for DC, AC (to pickup frequency), and ground. The antenna on the left is for the ...

Bottom cover of the WrenDAQ2. The weatherproof connector on the left is for connecting the external temperature sensor, anemometer, and RPM sensor. The middle feedthru is for DC, AC (to pickup frequency), and ground. The antenna on the left is for the 900 MHz ISM modem.