Hello.
Connect via configurator to device (via serial or bluetooth) once its plugged into working vehicle and check configurator -> status window -> OBD section.
There is ambient air temperature IO element.
Some vehicles might not support this OBD II pid though. To check if its supported you can send sms/gprs command to device: "obdinfo".
https://wiki.teltonika.lt/view/FMB_obdinfo
P1:<Available Pids>, P2:<Available Pids>, P3:<Available Pids>, P4:<Available Pids>, C1:<configured pids>, C2:<configured pids>, C3:<configured pids>, C4:<configured pids>,
Hdr:<header>, Phy:<phy addr mode>, CFG:<config header>, vX.Y
<X.Y = obd FW version>
The pid (ambient air temperature) which you are interested in is under P4.
Its number is 46. So bit 6th bit if counting from 1. or 5th bit if counting from 0.
More information:
https://en.wikipedia.org/wiki/OBD-II_PIDs
https://en.wikipedia.org/wiki/OBD-II_PIDs#Service_01_PID_00 (this is example on how to parse pids available for P1).
Regards
