OSHA & IEC Noise Dosimeter

ST-130 Noise Dosimeter. Design for OSHA & IEC Noise Accumulation Survey. OSHA/MSHA/DOD/ACGIH/ISO85/ISO90 Standards. Up to 1,000,000 Logger Data.

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ST-130 Noise Dosimeter

The Scarlet ST-130 Noise Dosimeter is the ideal tool to carry out occupational and industrial hygiene noise measurements and provide a unique solution for these applications. ST-130 is designed to meet the standard dose measurement of OHSA, IEC and ISO regulations. To measure long-term noise exposure, the ST-130 comes with small, lightweight, cable-free designs and can be worn on the shoulder for minimal inconvenience. Scarlet ST-130/S series offer the low cost but hight performance noise dosimeter for all applications. To know more about our range of compact and convenient noise measurement products, please get in touch today.


  • Perform OSHA and IEC noise accumulation surveys
  • 6 built-in standard dose measurement setups: OSHA/ MSHA/DOD/ACGIH/ISO85/ISO90
  • Data logger up to 10,00,000 readings
  • Adjustable criterion level, exchange rate & threshold
  • Sampling times between 1 sec to 2 hr
  • Stores up to 10,000 dose meter survey results
  • Dose Meter Mode: record time stamp, %Dose, TWA8, LEP, 8h, Leq, SEL, LN%, SPLmax, SPLmin, PeakMAX
  • Sound Level Meter mode: Leq, PeakMAX & SEL
  • USB interface. Support Windows XP / Vista / 7 / 8


    • Evaluation of environmental noise and logging
    • Measurements of occupational noise at workplaces
    • Compliance with noise at Work Regulations and occupational noise exposure guidelines
    • Monitoring and recording of long term noise exposure
    • Noise exposure measurements in hazardous environments such as oil fields, petrochemical plants and underground mines
    • Measurement of noise exposure in the entertainment and music industries
  • Item Description
    Measurement items (Noise Dosimeter) Does%, Lxyp, Lxmax, Lxmin, Lxeq, SEL( LAE ), PeakMAX, LAVG, TWA, LEP, LN%
    Measurement items (sound level meter) Lxyp, Lxmax, Lxmin, Lxeq, SEL( LAE ), PeakMAX
    Display range 30...90 dB (L), 50...110 dB (M), 70...140 dB (H)
    Primary RMS range @ 1 kHz 41...86 dB (L), 55...106 dB (M), 75...125 dB (H)
    Max Cpeak measurement 90...143 dB
    Dynamics range 60 dB
    Accuracy +/- 1.4 dB @ 94 dB / 1 kHz
    Microphone (ST-130S) 1/2” pre-polarized condenser microphone build in preamplifier: 1V/Pa@250HZ, frequency range: 20 Hz~12.5 kHz, Thermal noise: < 25 dB(A)
    Display Single LCD MAX reading 999999
    Display refresh rate 1 Hz
    Internal memory Data loger data: 10,000 NDM surveys; 1,000,000 SLM readings
    Time weighting Fast / Slow / Impulse
    Frequency weighting A /C /Z
    Frequency range 20 Hz...8 kHz
    Starting time Less than 10 sec
    Battery life ( ST-130S ) 20 hours ( 9V Alkaline battery x 1 )
    Battery life ( ST-130 ) 24 hours ( 9V Alkaline battery x 1 )
    Dimensions 107 (L) x 65 (W) x 33 (H) mm
    • IEC 61252-1993
    • IEC 61672-1-2003
    • ANSI S1, 25-1992
    • ANSI S1, 4-1983
    • ANSI S1, 43-1997
  • doc

    ST-130 User Manual ST-130 Noise Dosimeter user manual 2015.



    ST-130 Data Sheet ST-130 Noise Dosimeter datasheet 2015.