A full featured, 4 function, 1" (25.4mm) harnessed decoder with a built in Keep-Alive™. The built-in KA2 Keep-Alive™ will keep your locomotive operating for 6-15 seconds without power (dirty track, bad contact, etc. etc.). Included is TCS' auto-adjusting BEMF for outstanding slow speed performance. Also includes Quiet Drive for super quiet engine performance.
Dimensions: 0.945" x 0.66" x 0.33" or 24 mm x 16.7 mm x 8.38 mm
