This site contains affiliate links for which we may be compensated.
Bachmann Track Voltage Tester 39012$20.75
Perfect for any layout or train set, the Bachmann Track Voltage Tester lets you check if and how much power your track has. Lights illuminate for 5-9V, 9-12V and 12V+. Works on all HO, N, and On30 track systems.
Also shows polarity. The Track Voltage Tester is one of many handy Bachmann modeling tools.