Kato USA Inc
Automatic 3-Color Signal

Walthers Part # 381-20605
N scale, $46.50, not currently in stock at Walthers, Expected: In Transit
Some dealers have received this item from Walthers in the past. Click
here for a listing.
The signal changes from green to red as the engine reaches the detector
position. A built-in timer then changes the signal to yellow and then back
to green.