Onboard Electronic Smoke Pump w/aluminum case

This is the Sullivan Skywriter Smoke Pump.

Electronically controlled smoke pump for onboard smoke systems
Ultrasonically sealed direct drive pump head
Aluminum case
Miniature microprocessor controlled electronic pulse drive flow
control
Smoke rate can be set with transmitter trim and mixed with the
throttle channel
Works with 6-12V battery packs

One Sullivan Skywriter Smoke Pump

Installing in model, connecting to smoke system and plugging into
any unused receiver channel

Length: 3.8" (96mm)
Width: 1.4" (36mm)
Height: 1.4" (36mm)
Weight: 3.9oz (109g)