RT485B (RT-485B) $1,395 USD Part #: 49250-1000 Stock #: Not Listed Certification: 8130-3 Voltage: 28 V Plug-in replacement: Narco MK-12E ARC (Cessna) Replacement TKM MX-385 ARC RT-385A ARC's RT-485B is a soli... More Info Bennett Avio