TL30 64506 - Pulsed Smoke Generator

TRAINLI® ProLine™ Smoke Unit

TrueSound DCC by ZIMO can control pulsed smoke units allowing for chuff synchronized smoke generation for steam engines and load dependent smoke generation for Diesel engines.

Dimensions:
Length: 2" (2 1/2" is the overall length with mounting holders)
Width: 1 1/8" (1 1/2" with mounting bars - can be cut off if not used)
Height: 1 1/8" (including the smoke funnel on top)

here's a Video of the Smoke unit, installed in an LGB Meyer type locomotive,

the locomotive and smoke unit are being run with a Zimo MX696 series decoder 

For more details, you may download the manual