CT12 is a programmable device for timing control incorporating 2 independent timers in one case. Two relay outputs (one per channel) control electrical actuators by switching them on and off. A time sequence that may consist of up to 10 ON or OFF periods, each with different duration, may be programmed for each output (channel). The device may be used as a single channel timer with up to 20 period time sequence. After a start command from the featured external input or the front-panel keyboard, the time sequence may be run once or repeated endlessly. A 4-digit digital display indicates current time and during programming parameter values, and the keyboard enables setting of all modes and parameters of time sequence. The CT12 timer is easy to program and with its rich set of features widely applicable.