The controller is used for manual operation of the Steeldrive II Motor Unit (#2957265) with the keypad as well as to connect it to a computer. The control electronics are built into this unit.
A control unit can control one motor unit at a time, but you can use a computer to control several controllers parallel.
The intuitive hand control makes it possible to find and save the focus point very fast. Several modes are available to move the focuser:
The configuration of limits, saving and resetting of positions and (de)activating of the temperature control can also be done with the hand control. Brightness of backlight illumination and status LEDs are also configurable.
The motor unit and focuser are not included.