Measuremen functions

    Sound level LP
    Equivalent continuose sound level Leq
    Sound exposure level LE
    Maximum sound level Lmax
    Minimum sound level Lmin
    Percentile sound level LN(5 selectable settings)

  Measuremen Time

    10seconds, 1, 5, 10, 15, 30minutes, 1, 8, 24 hours, and  manual(maximum 200 hours)

  Measurement range

    A weighting : 28 to 138 dB
    C weighting : 33 to 138 dB
    FLAT :           38 to 138 dB

  Inherent noise

    A weighting :                                 20 dB or less
    C weighting :                                 20 dB or less
    FLAT  :                                         32 dB or less
    Linearity range                              100 dB
    Reference sound pressure level   94dB
    Reference level range                     30 to 120 dB

  Level range selection

    6 ranges in 10-dB steps 20 to 80 dB
                                       20 to 90 dB 
                                       20 to 100 dB
                                       20 to 110 dB
                                       30 to 120 dB
                                       40 to 130 dB  

  Frequency range

    Overall characteristics including microphone : 20 to 8000 Hz
    Electrical circuit characteristics (AC output) :  10 to 20000 Hz
    Electrical circuit characteristics (RMS) :         10 to 140000 Hz

  Frequency weighting

    A, C, FLAT

  RMS detection Digital processor

    Time weighting : Fast, Slow

  Calibration

    Electrical calibration with 1-kHz sine wave signal from built-in oscilator
    Acoustic calibration using sound calibrator
    Sampling interval 30.3㎲(Leq, LE),  100ms(LN)

  Data store functions

    Data can be stored in the internal memory

  Microphone

    1/2-inch electret condenser type
    Model :           UC-52
    Preamplifier :  NH-21

  Display

    Backklit LCD (128×64dots+121icons)
    Display screens
    Numeric and bar graph indicaton of sound level
    Processing results screen
    Level-timi graph (real-time level recording with 20-second horizontal axis)
    Message on menu screens can be changed into English, Germany or Spanish)

  Outputs

    AC/DC out
    I/O connector (Sound level meter control from and data output to a computer)
    Data output to printer DPU-414/CP-11/CP-10

  Dimensions

    Apporx, 260 × 76 × 33mm

  Weight(excluding batteries)

    Apporx, 400g