Classic sound level meter with data logging function

• Built in octave band and thirdoctave band filters
• Measurement range from 20to 140 dB(A)
• 9 octave bands from 31Hz to 8kHz plus 2 overall levels
• 28 third octave bands from 25Hz to 12.5kHz plus overall
• Non volatile memory storage for up to 999 separate runs
• Each run can store up to 9999 regular period
• Graphic level recorder mode with 2 time history profiles
• External power for extendedlong term monitoring
• Ac output for tape recordingand playback
• Direct print and pc download