KL5 electronic pressure switches permit the actuation of an electronic micro-switch upon reaching a predetermined pressure setting and to the continuous regulation of the hysteresis value. The right hand lever mounted on the instrument that is rotated forward to increase and reverse to decrease controls the maximum set point. The minimum set point of pressure hysteresis is adjustable by rotating the left hand lever of the instrument. The instrument completely solid state, it is totally without electromechanical or dynamic parts.