The polarity (or train direction) of the rails is shown on the product. Add to Favourites. Power Supply: DC MPN: tt10+ Brand: Train tech EAN: 5060325133499
Gaugemaster GM52 - LED Multi Gauge Track Tester DCC/DC N, H0/00 Gauge RM48 Post
Train-Tech TT1 - LED Multi Gauge Track Tester DCC/DC For N/H0/00 Gauges - RM48P
Train-Tech TT1 - LED Multi Gauge Track Tester DCC/DC For N/H0/00 Gauges ++ RM48P
Train Tech TT10+ OO HO O G Multi-Gauge Track Tester for DC & DCC Railways
TTTT10 Train Tech Multi Gauge Track Tester for OO/O/G Scales
Train Tech Multi gauge Track Tester N/TT/HO/OO Gauge TT1
