860066 LAISDCC Multi scale DCC Track tester for OO, HO and N Gauge track - Easily find open circuit sections on track on both DCC and DC layouts

This track tester works on OO, HO and N Gauge track.  It enables you to quickly test track for DCC or DC power as well as helping you to locate faults at track joints, points etc. To use, simply place it across your track and the multi-coloured LED will either display Orange for DCC power, or Red and Green for DC power with the colour indicating the positive or negative. The polarity (or train direction) of the rails is shown on the product.