TRK001 TPWS Loops – EM/P4/S4 Gauge Track

Same as TRK000 but scaled for EM/P4/S4 Gauge track.

Contains 3 sets of TPWS loops - enough for 3 signals. Each set contains one pair of Over Speed Sensors loops and one pair of Train Stop Sensor loops in etched brass. Simple assembly required using superglue.