* Permits choice “A”, “C” , “F” weighting and “Fast” / “Slow” response times.

* Offers 4 measurement parameters: Lp (sound level); Leq (Equivalent Continuous A Sound Level ); Lmax ( Maximum Sound Level) and LN (Percent of all readings over alarm value set ).

* DC output :1 0 m V / d B.

* Can memorize 30 groups of measurement results and measuring conditions.

* Auto range selection and digital display with no guessing errors.

* Use “USB data output” and “RS-232 data output” to connect with PC.