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Decoder
Tester
Includes clips to quickly connect decoder
wires
NMRA socket to test decoders with an NMRA
plug
LEDs to indicate speed, direction, and
function status
Assembled and ready to use - not
a kit
DTH
Decoder
Tester Harness
DTE
Decoder
Tester Socket Extension
Some decoders have the NMRA plug installed
right on the decoder board, rather than having it at the end
of wires. In these cases, the decoders can't be plugged into
the tester's socket because the wire spring clips get in the
way. The DTE Socket Extension allows you to plug these boards
in for a quick and easy test.