Block Signalling TKM2 Track Voltage Tester

The BLOCKsignalling TKM2 is designed to locate voltage drops and poor track connections that can affect the smooth operation of model locomotives.

Simply place on the track, and the leds light to indicate the voltage present.

RED: Below 6V
YELLOW: 6V to 12V
GREEN: 12V and above

The contacts on the base of the unit are spaced to suit Z, N, TT, HO and OO gauges.

Suitable for DC and DCC layouts.