Great for testing and programming Lok Sound and Lok Pilot decoders. Makes sure decoders work properly before installation in locos with this handy tool. Unit includes a six-wire NEM 651 harness and an eight-wire NEM 652 interface, along with a 21-pin mtc interface; decoders without plugs can be connected using alligator clips (not included).

A high quality, 5 pole skewed armature can motor with flywheel lets you check motor output and test slow and constant speed characteristics of your decoder. An LED-monitor shows the function of the head- and rear lights, as well as function outputs AUX 1 (green), and AUX 2 (violet). A 20 mm speaker is included for testing sound decoders.

A screw terminal assures safe connection between the Profi-Tester and the Digital central station-, or LokProgrammer (each sold separately).