Profile: MEV Ltd. provides electronic and software design service. Our USB to serial converters provide legacy RS232 or RS485 serial communication interfaces to computers with USB support. The USB232 /485 series of interfaces comes with Windows and Mac OS compatible drivers and are designed to meet stringent performance requirements and be easy to use while maintaining compatibility with standard serial communications boards. The devices are also supported by Linux, FreeBSD and OpenBSD. The Windows drivers are compatible with LabVIEW standard serial driver interface. Our gamma spectra synthesis system provides accurate and repeatable spectra used to test monitoring equipment in the nuclear industry.