Time Mark Corporation was founded in early 1972 and incorporated in the state of Oklahoma on May 2nd of the same year. Design efforts began on a line of monitoring devices for sensing the condition of three-phase power lines. Time Mark product lines have expanded greatly, as customers needs increased and requests were met.
3-Phase Monitors - Time Mark is a world leader in the design and manufacturing of 3-phase sensing devices. Included in the product line are reverse phase detectors, phase loss sensors, and phase unbalance sensors.