Particle Measuring Systems, Inc. (PMS; Boulder, CO), a manufacturer of microcontamination monitoring instruments, has been acquired by Fairey Group plc (Egham, Surrey, UK). The Fairey Group is a publicly traded industrial electronics and specialist engineering group. The acquisition was made for $75 million. According to PMS, several purchasers approached the firm for a buyout offer. PMS will continue to operate from its Boulder, CO manufacturing facility with its existing management and workforce.