Time controller STW-F is a device that allows the realization of a function of time with two changeover relays. It has two control circuits.

In addition, programmable cycle time interval between the first and second. If the setting is not zero the controller turns on the time set for the first relay of the track, and then measures the gap and attach to the time set for the second track corresponding relay.

The controller is equipped with buttons grouped on the front panel which allows for easy entry setting (time), and to enable / disable the countdown at any time. The device is used to control two or miesiarek one speed.