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Sound Level Meter

The 308 Class 1 Sound Level Meter is an instrument for measuring sound pressure levels in decibels. It follows the International Organization for Standardization (ISO) standards for accuracy and precision.

Its high accuracy and low uncertainty make it ideal for measuring loud phenomena such as gunshot sounds. The optional high sound level pressure microphone capsule extends the sound level range of the meter.

It can measure loud sounds of up to 184 decibels without saturation or distortion. This capsule is especially useful for measuring sounds in military, engineering, and entertainment applications.

The unit is equipped with a large digital display that shows real time decibel readings. It also has a data logging function that records sound levels over time. The unit is powered by rechargeable batteries and is lightweight and portable, making it easy to use.

Overall, the 308-HSPL Class 1 Sound Level Meter provides accurate and reliable sound level measurements, especially in high sound level environments.

The optional MK 301 E or MK 342 E high sound level pressure microphone capsule thus extends the range of this already powerful instrument.

Sound Level Meter BSWA 308

Sound Level Meter


Basic noise measurement

Assessment of ambient noise

Product quality check

Evaluation of noise reduction measures


  • Class 1 BSWA 308 sound level meter
  • Conforms to IEC 61672-1:2013, ANS I S1.4 1983 and ANSI S1.43 1997
  • Realtime 1/1 and 1/3 octave according to IEC 61260 1:2014 and ANSI S1.11 2004
  • Measuring range : 22dBA~136dBA ( BSWA 308 )
  • A measurement range to cover the dynamic range 123dB BSWA 308 ) / 122dB BSWA 309
  • Frequency weighting : A/B/C/Z. Time Weighting Fast Slow Impulse
  • 3 profiles and 14 user-defined measurements are calculated in parallel with different frequency/time weightings
  • Calculation of SPL, LEQ, Max, Min, Peak, SD, SEL, E
  • View LN statistics and time history curves
  • Custom integral period measurement, integral period up to 24h
  • High-speed ARM core with FPU (Float Point Unit) to achieve wide frequency response, wide dynamic range and low noise floor
  • 4G MicroSD card (TF card) as mass storage
  • RS 232 remote control port
  • Mini thermal printer for printing measurement data
  • Internal GPS module (option), supports GPS timing