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inorganic vapours and acid gases
3 Self Coloured Button Placket
5 mm listen only stereo input (limited to 82 dB) for connection to external devices (e
• Compact design
• Conforms to EN ISO 20345: 2011 S3 SRC
H540B Peltor Optime 3 Neckband Colour:Black inorganic vapours and acid gasesOptime III is a super muff, and has been developed for use in extremely noisy environments. The protection is based on a technology with a double casing that minimises resonance in the holder casing. This results in maximum high frequency muffling, while at the same time its still easy to understand speech and signals. An acoustic connection between the inner volume and the volume between the casings in its turn provides maximum low frequency