Castle Group Ltd of Scarborough has completely re-vamped its range of pocket sized sound meter which will be launched at Safety & Health Expo, 12-14th May 2009 at the NEC. The newly named 'Sonus' Sound Level and Dosemeters host a high level of specification, packed into a small body. At the Top of the range is a combined Sound- and Dose-meter sporting dual-frequency measurement, data-logging to a sizeable memory and measurements to support noise at work and environmental applications.
