The Castle SONUS range of pocket sized sound level meters bring simplicity and power to the worlds of Noise at Work and Environmental sound monitoring. From a basic sound pressure meter to full data-logging, combined sound and dosemeter, the range of systems covers a wide diversity of applications.Top of the Castle Pocket Range of Sound Level Meters is the SONUS L (GA116L & GA216L), a Noise at Work and Environmental Sound Meter boasting a combined integrating sound level meter and dosemeter with full data-logging capability. Simply un-plug the sound meter microphone and plug-in the dosemeter cable to convert to a full-function dosemeter. The dual measurement feature of the SONUS means two versions of most parameters can be measured simultaneously. This feature means you only ever need to measure once to capture all the data you need! Mobility of instrumentation is essential for effective noise measurement. As the name indicates, the Castle SONUS ‘Pocket Meters’ pack all the necessary features into pocket sized proportions The data-logging instruments have a USB connection and are compatible with the Castle dBdataPRO software, where data can be presented in the desired format and copied and pasted into other applications, so you don’t have to change the way you have always completed your reports. There are a number of system packages available to suit many applications from simple tasks such as alarm monitoring, to a fully weatherproof system for long-term environmental monitoring, there are also dedicated packages for Noise at Work requirements.