The 365C300N30PX microprocessor-based digital timer is equipped with three rotary knobs for setting and adjustment of the preset. The preset can be any three-digit value from .01 SEC to 999 HR. The decimal and range are switch selectable. The high-intensity blue vacuum fluorescent display is DIP switch selectable to timeup or timedown. Two heavy-duty 7A DPDT relays provide instantaneous, interval or delayed output control. Plug-in panel mounting allows easy replacement without the removal of field wiring.