I am installing a dual screen / single AHRS AFS-4500 system (EF-4500 and EM-4500) in my RV-7. Normally one OAT sensor would be connected to the EF-4500 main harness. I bought a second OAT sensor with the thought that I might upgrade to a dual AHRS system (EF-4500 and EE-4500) at a later date and it would be much easier to install the OAT sensor now.

Can I connect the second OAT sensor to the EM-4500 main harness and utilize it with my current installation? Do I just configure each screen to use it's own OAT sensor instead of configuring the EM-4500 to get OAT data from the EF-4500?

Thanks,
Paul Winkels