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Edward Lowton
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ARTICLE
Pocket power
25 January 2013
Pocket-sized, the new 'Sonus' (Latin for sound) sound level- and dose-meters from Castle Group pack a high level of specification, into a small body. Top of the range is a combined sound- and dose-meter sporting d

Pocket-sized, the new
'Sonus' (Latin for
sound) sound level- and
dose-meters from Castle
Group pack a high level
of specification, into a
small body.
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. Features include dual-frequency measurement, availability of 3 Ln percentile values, and crack resistant plastic case.
Data can be downloaded to Castle's dBdataPRO software where instant analysis of hearing protection can be performed using an in-built database of ear defenders on the HSE's HML assessment method.
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. Features include dual-frequency measurement, availability of 3 Ln percentile values, and crack resistant plastic case.
Data can be downloaded to Castle's dBdataPRO software where instant analysis of hearing protection can be performed using an in-built database of ear defenders on the HSE's HML assessment method.
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