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 :10 mV/dB. Auto range selection.  Can memorize 30 groups of measurements.  Use RS-232 data output to connect with PC.  Provide Bluetooth data output choice