The NL-27 is an ultra compact, ultra lightweight general-purpose sound level meter. It can be easily carried in a shirt pocket.
Although small in size, the unit is a high-performance product compliant with the Measurement Law and JIS and IEC standards.
It can perform sound level measurements over a range of 30 to 130 dB without range switching.
Available measurement values include sound pressure level (noise level), time-averaged sound pressure level (equivalent sound level), maximum sound pressure level (noise level max. value), sound exposure level, etc. However, time percentile sound pressure level measurement is not supported.