MyLaps RC4 Pro Transponder (3-wire) Alaska Railroad ARR Screw are compatible with stock

Screw are compatible with stock Axial 1

bell sounds and special announcements

UP ordered two different lots of Greenville auto parts box cars

Material:PC (Polycarbonate)

MyLaps RC4 Pro Transponder (3-wire) Alaska Railroad ARR Screw are compatible with stockMyLaps RC4 Pro Transponder 3 wire The RC4 Pro (3 wire) transponder is the latest in the line of transponders from MyLaps. The standard RC4 transponder supports car ID numbers so you can have the same transponder number in all your cars, with a different ID for each. The standard RC4 transponder also gives additional telemetry data such as voltage to the transponder and transponder temperature each time the loop is crossed. The RC4 "Pro" edition