AmericanDJ VFTR Fog Machine Timer Remote

The ADJ VFTR is a timer remote control for select ADJ VF Series fog machines, adding interval and duration control on top of a plain manual trigger.

A timer is what lets a machine run unattended: set the gap between bursts and how long each one lasts, and the room stays hazed without anyone standing at the machine. ADJ catalogues it under Fluid, Timer and Accessories as part number VFTR.