SoundTEK ST-120 Class 1 Sound Level Calibrator

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  • Projects sound at 94dB and 114dB for meter calibration
  • Meets IEC 60942 Class 1 standards for accuracy
  • Feedback system ensures constant, stable sound

rrp £422.00

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"Accurate to within 0.3dB at 94dB and to within 0.5dB at 114dB"

  • Description

    SoundTEK ST-120 Class 1 Sound Level Calibrator

    The SoundTEK ST-120 Class 1 Sound Level Calibrator is a highly accurate sound meter calibrator which allows the user to calibrate his/her own instruments without the need of a third party. It fits 1/2" microphones including those of the SoundTEK ST-107S and ST-109. Calibration is obviously very important and users can have confidence in the ST-120 because it conforms to the IEC 60942 Class 1 accuracy standard and is therefore in the upper tier of the industry’s rating system.

    With a feedback system to ensure a stable output, the ST-120 projects sound at 94dB to within ±0.3dB accuracy and at 114dB to within ±0.5dB accuracy. Decibels are a logarithmic scale where every 3dB represents a doubling in wave length amplitude so precise calibration is extremely important for accuracy in sound level meters.

    The product is pre-calibrated and batteries are included so it is ready to use straight out of the box.

    Key features

    • Calibrates 1/2" microphones
    • Feedback system ensures highly stable volume output
    • Accuracy meets IEC 60942 Class 1 requirements
    • Projects sound at 94dB and 114dB

    SoundTEK Meter Comparison Chart

      ST-105 ST-106 ST-107S ST-109
    IEC 61672-1-2002 Class 1  
    IEC 61672-1-2002 Class 2      
    Datalogging
    128 Records Storage      
    37,000 Records Storage    
    24H Measurement
    1/1 Octave      
    1/3 Octave      
    Real time analysis      
    A/C/Z
    F/S/Impulse    
    24H Measurement
    Micro-SD Slot    
    Compatible with SoundTEK ST-120 Class 1 Sound Calibrator (optional extra)
  • Specification

    • Standard: IEC 60942 (2003) and ANSI S1.40 (1984) Class 1
    • Sound Pressure Levels: 94dB and 114dB (reference of 2x10-5Pa)
    • Accuracy: ±0.3dB at 94dB, ±0.5dB at 114dB
    • Frequency: 1000Hz ± 1%
    • Distortion: ≤3%
    • Battery: 9V 006P or |EC6F22 or NEDA 1604
    • Dimension: ⌀ 62 x 134 mm
    • Weight: about 350g (included 1/2” adaptor and 9V battery)
    • Stable Times: 20s
    • Operating Temperature: 0ºC ~ 40ºC (32ºF ~ 104ºF)
    • Storage Temperature: 0ºC ~ 60ºC (32ºF ~ 140ºF)
    • Humidity: < 90%
    • Atmospheric Pressure: 64KPa ~ 100KPa
  • Supplied Accessories

    • SoundTEK ST-120 Class 1 Sound Level Calibrator
    • SoundTEK ST-120 Class 1 Sound Level Calibrator instruction manual
    • SoundTEK carry case
    • Calibration certificate
    • 1 x 9V battery
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    • Saturday Pre 12pm Delivery (on select products only) at £19.95*
    • Sunday Pre 12pm Delivery (on select products only) at £19.95*

    *UK mainland only

    NOTE! For next working day or Saturday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only.

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