Low-Level Indication for XL2 Sound Level Meter
14.02.2014 -- 
The XL2 Sound Level Meter now provides individual under-range indicators for both C- and Z-weighted sound levels. This new feature ensures increased confidence in measurement integrity while maintaining simplicity of measurement.
The XL2 supports high measurement accuracy with under-range indicators. These inform users, during low level measurements, that an alternative microphone with lower noise floor or higher sensitivity should be used. In the past the XL2 indicated when readings were below the linear measurement range for the A-weighted level in accordance with the standard IEC 61672. Now the instrument displays an under-range status also for individual levels with C or Z frequency weighting. Should any sound level be detected as under-range, then the XL2 marks this level with the new symbol “<“, e.g. “LZeq < 23 dB“. With this enhancement XL2 users benefit from another free product extension.
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