The IMI Sensors Division of PCB Piezotronics introduced the 686A Series two-wire electronic vibration switch, which is microprocessor controlled with no moving parts or mechanical adjustments required. The switch offers the dynamics of an electronic switch with the convenience of a mechanical switch in one design. Its blueprint includes the patent-pending Magnetic Adjustable Vibration Threshold (MAVT). This feature electronically adjusts the threshold value while the switch is installed on running equipment through a magnetically activated sensor. This allows for immediate installation and protection with no need for equipment shutdown.