Range: 30.0 to 130.0 dB Applicable standard - IEC 651 Type 2 30Hz to 8KHz frequency range A & C weighting with Fast & Slow response Analogue output 0.707Vrms or 10mV/dB Maximum hold (peak) Data logging with 16,000 reading memory Fixed sample interval at 1 sec (4 ½ hrs recording) Real time clock and RS232 c/w carry case, wind shield, software, PC cable, batteries and manual