SDL 1 is a class II (type 2) data-logging sound level meter, sound pressure level (SPL) meter, noise meter or decibel (dB) meter used for long-term acoustic measurements.

The Windows-compatible software included with the meter allows for the display of a progressive graph of the data collected. The software also enables the user to set alarm limits indicated on the meter via flashing LEDs. 

Sound Level Meter SDL 1

  • Measurement range 30 ... 130 dB
    Standard IEC 61672-1 (Class II)
    Accuracy ± 1.4 dB
    Time weighting Fast and slow
    Frequency 31.5 Hz ... 8 kHz
    Storage capacity 129,920 data sets
    Frequency weighting A and C
    Measuring rate 1 sec ... 24 hrs
    Operating conditions 0 ... 40 °C / +32 ... +104 °F , 10 ... 75 % RH    
    Power supply 3.6 V battery
    System requirements Windows 2000 and up
    Dimensions Approx. 130 x 25 x 30 mm / 5.12 x 0.98 x 1.18"
    Weight Approx. 20 g / 0.05 lb

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