The polarity (or train direction) of the rails is shown on the product. Add to Favourites.
Train-Tech TT1 - LED Multi Gauge Track Tester DCC/DC For N/H0/00 Gauges - DSAP
RK EDUCATION 'OO' GAUGE LOT OF 8 PSU V3/CDU 1/TT1/PDU1/BUS1 CONTROL ACCESSORIES
Train-Tech TT1 (GM52) Track Tester OO/HO/N Gauges
Train Tech Multi gauge Track Tester N/TT/HO/OO Gauge TT1
Track Tester for power and faults - N/OO/HO - Train Tech TT1 -
10 pcs. HO Freight Yard LED Model Railway Yard or Spot Lights 11cm high 3 LED
