Included are the AV-20-S with internal backup battery and two 1/4″ quick connect fittings, mounting screws, a d-subminiature connector, backshell, and pins.

An OAT probe is NOT included and must be purchased separately.  The AV-20-S is compatible with the industry-standard Davtron Analog probe, available through common component suppliers.  (If the OAT probe is not connected, OAT, DALT and TAS will not be displayed.)